Home / 82,822.28-124,231.92-20,492.76

Finding the Fourth Proportional to 82,822.28, 124,231.92 and 20,492.76

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Solution

The fourth proportional to 82,822.28, 124,231.92 and 20,492.76 is: 30,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,822.28 : 124,231.92 = 20,492.76 : x
  2. Step 2: Convert to fraction form
    82,822.28/124,231.92 = 20,492.76/x
  3. Step 3: Cross multiply
    82,822.28x = 124,231.92 × 20,492.76
  4. Step 4: Simplify right side
    82,822.28x = 2,545,854,920.90
  5. Step 5: Solve for x
    x = 2,545,854,920.90/82,822.28
  6. Step 6: Final answer
    x = 30,738.77

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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.