Home / 92,431.20-127,555.05-49,989.73

Finding the Fourth Proportional to 92,431.20, 127,555.05 and 49,989.73

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Solution

The fourth proportional to 92,431.20, 127,555.05 and 49,989.73 is: 68,985.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,431.20 : 127,555.05 = 49,989.73 : x
  2. Step 2: Convert to fraction form
    92,431.20/127,555.05 = 49,989.73/x
  3. Step 3: Cross multiply
    92,431.20x = 127,555.05 × 49,989.73
  4. Step 4: Simplify right side
    92,431.20x = 6,376,442,537.65
  5. Step 5: Solve for x
    x = 6,376,442,537.65/92,431.20
  6. Step 6: Final answer
    x = 68,985.83

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.