Home / 70,631.20-97,471.32-38,800.72

Finding the Fourth Proportional to 70,631.20, 97,471.32 and 38,800.72

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Solution

The fourth proportional to 70,631.20, 97,471.32 and 38,800.72 is: 53,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,631.20 : 97,471.32 = 38,800.72 : x
  2. Step 2: Convert to fraction form
    70,631.20/97,471.32 = 38,800.72/x
  3. Step 3: Cross multiply
    70,631.20x = 97,471.32 × 38,800.72
  4. Step 4: Simplify right side
    70,631.20x = 3,781,957,395.35
  5. Step 5: Solve for x
    x = 3,781,957,395.35/70,631.20
  6. Step 6: Final answer
    x = 53,545.14

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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.