Home / 82,823.70-124,089.15-80,082.90

Finding the Fourth Proportional to 82,823.70, 124,089.15 and 80,082.90

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Solution

The fourth proportional to 82,823.70, 124,089.15 and 80,082.90 is: 119,982.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,823.70 : 124,089.15 = 80,082.90 : x
  2. Step 2: Convert to fraction form
    82,823.70/124,089.15 = 80,082.90/x
  3. Step 3: Cross multiply
    82,823.70x = 124,089.15 × 80,082.90
  4. Step 4: Simplify right side
    82,823.70x = 9,937,418,990.54
  5. Step 5: Solve for x
    x = 9,937,418,990.54/82,823.70
  6. Step 6: Final answer
    x = 119,982.79

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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.