Home / 91,711.45-126,572.34-61,082.85

Finding the Fourth Proportional to 91,711.45, 126,572.34 and 61,082.85

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Solution

The fourth proportional to 91,711.45, 126,572.34 and 61,082.85 is: 84,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.45 : 126,572.34 = 61,082.85 : x
  2. Step 2: Convert to fraction form
    91,711.45/126,572.34 = 61,082.85/x
  3. Step 3: Cross multiply
    91,711.45x = 126,572.34 × 61,082.85
  4. Step 4: Simplify right side
    91,711.45x = 7,731,399,962.08
  5. Step 5: Solve for x
    x = 7,731,399,962.08/91,711.45
  6. Step 6: Final answer
    x = 84,301.36

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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.