Home / 72,531.21-108,772.17-25,135.26

Finding the Fourth Proportional to 72,531.21, 108,772.17 and 25,135.26

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Solution

The fourth proportional to 72,531.21, 108,772.17 and 25,135.26 is: 37,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,531.21 : 108,772.17 = 25,135.26 : x
  2. Step 2: Convert to fraction form
    72,531.21/108,772.17 = 25,135.26/x
  3. Step 3: Cross multiply
    72,531.21x = 108,772.17 × 25,135.26
  4. Step 4: Simplify right side
    72,531.21x = 2,734,016,773.71
  5. Step 5: Solve for x
    x = 2,734,016,773.71/72,531.21
  6. Step 6: Final answer
    x = 37,694.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.