Home / 80,242.02-120,379.23-55,294.02

Finding the Fourth Proportional to 80,242.02, 120,379.23 and 55,294.02

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Solution

The fourth proportional to 80,242.02, 120,379.23 and 55,294.02 is: 82,952.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,242.02 : 120,379.23 = 55,294.02 : x
  2. Step 2: Convert to fraction form
    80,242.02/120,379.23 = 55,294.02/x
  3. Step 3: Cross multiply
    80,242.02x = 120,379.23 × 55,294.02
  4. Step 4: Simplify right side
    80,242.02x = 6,656,251,551.20
  5. Step 5: Solve for x
    x = 6,656,251,551.20/80,242.02
  6. Step 6: Final answer
    x = 82,952.19

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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.