Home / 80,724.20-111,381.30-48,892.52

Finding the Fourth Proportional to 80,724.20, 111,381.30 and 48,892.52

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Solution

The fourth proportional to 80,724.20, 111,381.30 and 48,892.52 is: 67,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,724.20 : 111,381.30 = 48,892.52 : x
  2. Step 2: Convert to fraction form
    80,724.20/111,381.30 = 48,892.52/x
  3. Step 3: Cross multiply
    80,724.20x = 111,381.30 × 48,892.52
  4. Step 4: Simplify right side
    80,724.20x = 5,445,712,437.88
  5. Step 5: Solve for x
    x = 5,445,712,437.88/80,724.20
  6. Step 6: Final answer
    x = 67,460.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.