Home / 51,681.38-77,540.49-25,404.57

Finding the Fourth Proportional to 51,681.38, 77,540.49 and 25,404.57

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Solution

The fourth proportional to 51,681.38, 77,540.49 and 25,404.57 is: 38,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,681.38 : 77,540.49 = 25,404.57 : x
  2. Step 2: Convert to fraction form
    51,681.38/77,540.49 = 25,404.57/x
  3. Step 3: Cross multiply
    51,681.38x = 77,540.49 × 25,404.57
  4. Step 4: Simplify right side
    51,681.38x = 1,969,882,806.04
  5. Step 5: Solve for x
    x = 1,969,882,806.04/51,681.38
  6. Step 6: Final answer
    x = 38,115.91

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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.