Home / 82,280.74-123,421.08-19,951.24

Finding the Fourth Proportional to 82,280.74, 123,421.08 and 19,951.24

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Solution

The fourth proportional to 82,280.74, 123,421.08 and 19,951.24 is: 29,926.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,280.74 : 123,421.08 = 19,951.24 : x
  2. Step 2: Convert to fraction form
    82,280.74/123,421.08 = 19,951.24/x
  3. Step 3: Cross multiply
    82,280.74x = 123,421.08 × 19,951.24
  4. Step 4: Simplify right side
    82,280.74x = 2,462,403,588.14
  5. Step 5: Solve for x
    x = 2,462,403,588.14/82,280.74
  6. Step 6: Final answer
    x = 29,926.85

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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.