Home / 71,775.36-107,712.72-41,839.20

Finding the Fourth Proportional to 71,775.36, 107,712.72 and 41,839.20

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Solution

The fourth proportional to 71,775.36, 107,712.72 and 41,839.20 is: 62,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,775.36 : 107,712.72 = 41,839.20 : x
  2. Step 2: Convert to fraction form
    71,775.36/107,712.72 = 41,839.20/x
  3. Step 3: Cross multiply
    71,775.36x = 107,712.72 × 41,839.20
  4. Step 4: Simplify right side
    71,775.36x = 4,506,614,034.62
  5. Step 5: Solve for x
    x = 4,506,614,034.62/71,775.36
  6. Step 6: Final answer
    x = 62,787.76

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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.