Home / 80,927.68-121,391.52-25,528

Finding the Fourth Proportional to 80,927.68, 121,391.52 and 25,528

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Solution

The fourth proportional to 80,927.68, 121,391.52 and 25,528 is: 38,292

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,927.68 : 121,391.52 = 25,528 : x
  2. Step 2: Convert to fraction form
    80,927.68/121,391.52 = 25,528/x
  3. Step 3: Cross multiply
    80,927.68x = 121,391.52 × 25,528
  4. Step 4: Simplify right side
    80,927.68x = 3,098,882,722.56
  5. Step 5: Solve for x
    x = 3,098,882,722.56/80,927.68
  6. Step 6: Final answer
    x = 38,292

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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.