Home / 99,337.50-137,082.85-56,320.96

Finding the Fourth Proportional to 99,337.50, 137,082.85 and 56,320.96

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Solution

The fourth proportional to 99,337.50, 137,082.85 and 56,320.96 is: 77,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,337.50 : 137,082.85 = 56,320.96 : x
  2. Step 2: Convert to fraction form
    99,337.50/137,082.85 = 56,320.96/x
  3. Step 3: Cross multiply
    99,337.50x = 137,082.85 × 56,320.96
  4. Step 4: Simplify right side
    99,337.50x = 7,720,637,711.54
  5. Step 5: Solve for x
    x = 7,720,637,711.54/99,337.50
  6. Step 6: Final answer
    x = 77,721.28

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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.