Home / 92,431.21-127,555.07-49,989.74

Finding the Fourth Proportional to 92,431.21, 127,555.07 and 49,989.74

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Solution

The fourth proportional to 92,431.21, 127,555.07 and 49,989.74 is: 68,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,431.21 : 127,555.07 = 49,989.74 : x
  2. Step 2: Convert to fraction form
    92,431.21/127,555.07 = 49,989.74/x
  3. Step 3: Cross multiply
    92,431.21x = 127,555.07 × 49,989.74
  4. Step 4: Simplify right side
    92,431.21x = 6,376,445,228.84
  5. Step 5: Solve for x
    x = 6,376,445,228.84/92,431.21
  6. Step 6: Final answer
    x = 68,985.85

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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.