Home / 52,279.20-78,287.40-40,600.56

Finding the Fourth Proportional to 52,279.20, 78,287.40 and 40,600.56

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Solution

The fourth proportional to 52,279.20, 78,287.40 and 40,600.56 is: 60,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,279.20 : 78,287.40 = 40,600.56 : x
  2. Step 2: Convert to fraction form
    52,279.20/78,287.40 = 40,600.56/x
  3. Step 3: Cross multiply
    52,279.20x = 78,287.40 × 40,600.56
  4. Step 4: Simplify right side
    52,279.20x = 3,178,512,280.94
  5. Step 5: Solve for x
    x = 3,178,512,280.94/52,279.20
  6. Step 6: Final answer
    x = 60,798.79

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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.