Home / 40,715.97-61,082.73-12,635.43

Finding the Fourth Proportional to 40,715.97, 61,082.73 and 12,635.43

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Solution

The fourth proportional to 40,715.97, 61,082.73 and 12,635.43 is: 18,955.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,715.97 : 61,082.73 = 12,635.43 : x
  2. Step 2: Convert to fraction form
    40,715.97/61,082.73 = 12,635.43/x
  3. Step 3: Cross multiply
    40,715.97x = 61,082.73 × 12,635.43
  4. Step 4: Simplify right side
    40,715.97x = 771,806,559.12
  5. Step 5: Solve for x
    x = 771,806,559.12/40,715.97
  6. Step 6: Final answer
    x = 18,955.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.