Home / 87,538.47-131,307.71-69,925.83

Finding the Fourth Proportional to 87,538.47, 131,307.71 and 69,925.83

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Solution

The fourth proportional to 87,538.47, 131,307.71 and 69,925.83 is: 104,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,538.47 : 131,307.71 = 69,925.83 : x
  2. Step 2: Convert to fraction form
    87,538.47/131,307.71 = 69,925.83/x
  3. Step 3: Cross multiply
    87,538.47x = 131,307.71 × 69,925.83
  4. Step 4: Simplify right side
    87,538.47x = 9,181,800,257.52
  5. Step 5: Solve for x
    x = 9,181,800,257.52/87,538.47
  6. Step 6: Final answer
    x = 104,888.75

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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.