Home / 80,648.28-120,882.78-60,862.68

Finding the Fourth Proportional to 80,648.28, 120,882.78 and 60,862.68

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Solution

The fourth proportional to 80,648.28, 120,882.78 and 60,862.68 is: 91,226.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,648.28 : 120,882.78 = 60,862.68 : x
  2. Step 2: Convert to fraction form
    80,648.28/120,882.78 = 60,862.68/x
  3. Step 3: Cross multiply
    80,648.28x = 120,882.78 × 60,862.68
  4. Step 4: Simplify right side
    80,648.28x = 7,357,249,956.65
  5. Step 5: Solve for x
    x = 7,357,249,956.65/80,648.28
  6. Step 6: Final answer
    x = 91,226.37

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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.