Home / 71,935.50-99,269.85-40,106.34

Finding the Fourth Proportional to 71,935.50, 99,269.85 and 40,106.34

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Solution

The fourth proportional to 71,935.50, 99,269.85 and 40,106.34 is: 55,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,935.50 : 99,269.85 = 40,106.34 : x
  2. Step 2: Convert to fraction form
    71,935.50/99,269.85 = 40,106.34/x
  3. Step 3: Cross multiply
    71,935.50x = 99,269.85 × 40,106.34
  4. Step 4: Simplify right side
    71,935.50x = 3,981,350,355.85
  5. Step 5: Solve for x
    x = 3,981,350,355.85/71,935.50
  6. Step 6: Final answer
    x = 55,346.11

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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.