Home / 99,630.07-137,487.29-54,306.32

Finding the Fourth Proportional to 99,630.07, 137,487.29 and 54,306.32

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Solution

The fourth proportional to 99,630.07, 137,487.29 and 54,306.32 is: 74,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,630.07 : 137,487.29 = 54,306.32 : x
  2. Step 2: Convert to fraction form
    99,630.07/137,487.29 = 54,306.32/x
  3. Step 3: Cross multiply
    99,630.07x = 137,487.29 × 54,306.32
  4. Step 4: Simplify right side
    99,630.07x = 7,466,427,807.70
  5. Step 5: Solve for x
    x = 7,466,427,807.70/99,630.07
  6. Step 6: Final answer
    x = 74,941.51

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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.