Home / 82,432.59-123,648.68-54,148.08

Finding the Fourth Proportional to 82,432.59, 123,648.68 and 54,148.08

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Solution

The fourth proportional to 82,432.59, 123,648.68 and 54,148.08 is: 81,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,432.59 : 123,648.68 = 54,148.08 : x
  2. Step 2: Convert to fraction form
    82,432.59/123,648.68 = 54,148.08/x
  3. Step 3: Cross multiply
    82,432.59x = 123,648.68 × 54,148.08
  4. Step 4: Simplify right side
    82,432.59x = 6,695,338,133.66
  5. Step 5: Solve for x
    x = 6,695,338,133.66/82,432.59
  6. Step 6: Final answer
    x = 81,221.98

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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.