Home / 41,139.89-61,700.20-11,560.55

Finding the Fourth Proportional to 41,139.89, 61,700.20 and 11,560.55

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Solution

The fourth proportional to 41,139.89, 61,700.20 and 11,560.55 is: 17,338.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,139.89 : 61,700.20 = 11,560.55 : x
  2. Step 2: Convert to fraction form
    41,139.89/61,700.20 = 11,560.55/x
  3. Step 3: Cross multiply
    41,139.89x = 61,700.20 × 11,560.55
  4. Step 4: Simplify right side
    41,139.89x = 713,288,247.11
  5. Step 5: Solve for x
    x = 713,288,247.11/41,139.89
  6. Step 6: Final answer
    x = 17,338.12

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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.