Home / 82,631.52-123,780.96-38,197.08

Finding the Fourth Proportional to 82,631.52, 123,780.96 and 38,197.08

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Solution

The fourth proportional to 82,631.52, 123,780.96 and 38,197.08 is: 57,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,631.52 : 123,780.96 = 38,197.08 : x
  2. Step 2: Convert to fraction form
    82,631.52/123,780.96 = 38,197.08/x
  3. Step 3: Cross multiply
    82,631.52x = 123,780.96 × 38,197.08
  4. Step 4: Simplify right side
    82,631.52x = 4,728,071,231.60
  5. Step 5: Solve for x
    x = 4,728,071,231.60/82,631.52
  6. Step 6: Final answer
    x = 57,218.74

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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.