Home / 82,280.68-123,421.02-19,951.16

Finding the Fourth Proportional to 82,280.68, 123,421.02 and 19,951.16

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Solution

The fourth proportional to 82,280.68, 123,421.02 and 19,951.16 is: 29,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,280.68 : 123,421.02 = 19,951.16 : x
  2. Step 2: Convert to fraction form
    82,280.68/123,421.02 = 19,951.16/x
  3. Step 3: Cross multiply
    82,280.68x = 123,421.02 × 19,951.16
  4. Step 4: Simplify right side
    82,280.68x = 2,462,392,517.38
  5. Step 5: Solve for x
    x = 2,462,392,517.38/82,280.68
  6. Step 6: Final answer
    x = 29,926.74

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Similar ratio
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1.5x scale

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.