Home / 99,487.81-137,295.64-54,168.24

Finding the Fourth Proportional to 99,487.81, 137,295.64 and 54,168.24

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Solution

The fourth proportional to 99,487.81, 137,295.64 and 54,168.24 is: 74,753.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,487.81 : 137,295.64 = 54,168.24 : x
  2. Step 2: Convert to fraction form
    99,487.81/137,295.64 = 54,168.24/x
  3. Step 3: Cross multiply
    99,487.81x = 137,295.64 × 54,168.24
  4. Step 4: Simplify right side
    99,487.81x = 7,437,063,761.04
  5. Step 5: Solve for x
    x = 7,437,063,761.04/99,487.81
  6. Step 6: Final answer
    x = 74,753.52

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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.