Home / 92,431.28-127,555.17-49,989.80

Finding the Fourth Proportional to 92,431.28, 127,555.17 and 49,989.80

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Solution

The fourth proportional to 92,431.28, 127,555.17 and 49,989.80 is: 68,985.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,431.28 : 127,555.17 = 49,989.80 : x
  2. Step 2: Convert to fraction form
    92,431.28/127,555.17 = 49,989.80/x
  3. Step 3: Cross multiply
    92,431.28x = 127,555.17 × 49,989.80
  4. Step 4: Simplify right side
    92,431.28x = 6,376,457,437.27
  5. Step 5: Solve for x
    x = 6,376,457,437.27/92,431.28
  6. Step 6: Final answer
    x = 68,985.93

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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.