Home / 63,569.68-87,761.40-56,839.12

Finding the Fourth Proportional to 63,569.68, 87,761.40 and 56,839.12

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Solution

The fourth proportional to 63,569.68, 87,761.40 and 56,839.12 is: 78,469.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,569.68 : 87,761.40 = 56,839.12 : x
  2. Step 2: Convert to fraction form
    63,569.68/87,761.40 = 56,839.12/x
  3. Step 3: Cross multiply
    63,569.68x = 87,761.40 × 56,839.12
  4. Step 4: Simplify right side
    63,569.68x = 4,988,280,745.97
  5. Step 5: Solve for x
    x = 4,988,280,745.97/63,569.68
  6. Step 6: Final answer
    x = 78,469.50

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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.