Home / 77,281.38-115,843.64-43,932.53

Finding the Fourth Proportional to 77,281.38, 115,843.64 and 43,932.53

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Solution

The fourth proportional to 77,281.38, 115,843.64 and 43,932.53 is: 65,854.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,281.38 : 115,843.64 = 43,932.53 : x
  2. Step 2: Convert to fraction form
    77,281.38/115,843.64 = 43,932.53/x
  3. Step 3: Cross multiply
    77,281.38x = 115,843.64 × 43,932.53
  4. Step 4: Simplify right side
    77,281.38x = 5,089,304,189.61
  5. Step 5: Solve for x
    x = 5,089,304,189.61/77,281.38
  6. Step 6: Final answer
    x = 65,854.21

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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.