Home / 52,521.39-78,761.52-18,318.53

Finding the Fourth Proportional to 52,521.39, 78,761.52 and 18,318.53

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Solution

The fourth proportional to 52,521.39, 78,761.52 and 18,318.53 is: 27,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,521.39 : 78,761.52 = 18,318.53 : x
  2. Step 2: Convert to fraction form
    52,521.39/78,761.52 = 18,318.53/x
  3. Step 3: Cross multiply
    52,521.39x = 78,761.52 × 18,318.53
  4. Step 4: Simplify right side
    52,521.39x = 1,442,794,873.16
  5. Step 5: Solve for x
    x = 1,442,794,873.16/52,521.39
  6. Step 6: Final answer
    x = 27,470.61

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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.