Home / 40,723.54-61,082.42-12,642.92

Finding the Fourth Proportional to 40,723.54, 61,082.42 and 12,642.92

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Solution

The fourth proportional to 40,723.54, 61,082.42 and 12,642.92 is: 18,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,723.54 : 61,082.42 = 12,642.92 : x
  2. Step 2: Convert to fraction form
    40,723.54/61,082.42 = 12,642.92/x
  3. Step 3: Cross multiply
    40,723.54x = 61,082.42 × 12,642.92
  4. Step 4: Simplify right side
    40,723.54x = 772,260,149.47
  5. Step 5: Solve for x
    x = 772,260,149.47/40,723.54
  6. Step 6: Final answer
    x = 18,963.48

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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.