Home / 80,992.38-121,502.34-27,681.42

Finding the Fourth Proportional to 80,992.38, 121,502.34 and 27,681.42

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Solution

The fourth proportional to 80,992.38, 121,502.34 and 27,681.42 is: 41,526.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,992.38 : 121,502.34 = 27,681.42 : x
  2. Step 2: Convert to fraction form
    80,992.38/121,502.34 = 27,681.42/x
  3. Step 3: Cross multiply
    80,992.38x = 121,502.34 × 27,681.42
  4. Step 4: Simplify right side
    80,992.38x = 3,363,357,304.52
  5. Step 5: Solve for x
    x = 3,363,357,304.52/80,992.38
  6. Step 6: Final answer
    x = 41,526.84

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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.