Home / 82,823.20-124,088.40-80,082.40

Finding the Fourth Proportional to 82,823.20, 124,088.40 and 80,082.40

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Solution

The fourth proportional to 82,823.20, 124,088.40 and 80,082.40 is: 119,982.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,823.20 : 124,088.40 = 80,082.40 : x
  2. Step 2: Convert to fraction form
    82,823.20/124,088.40 = 80,082.40/x
  3. Step 3: Cross multiply
    82,823.20x = 124,088.40 × 80,082.40
  4. Step 4: Simplify right side
    82,823.20x = 9,937,296,884.16
  5. Step 5: Solve for x
    x = 9,937,296,884.16/82,823.20
  6. Step 6: Final answer
    x = 119,982.04

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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.