Home / 52,238.13-78,388.32-18,960.79

Finding the Fourth Proportional to 52,238.13, 78,388.32 and 18,960.79

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Solution

The fourth proportional to 52,238.13, 78,388.32 and 18,960.79 is: 28,452.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,238.13 : 78,388.32 = 18,960.79 : x
  2. Step 2: Convert to fraction form
    52,238.13/78,388.32 = 18,960.79/x
  3. Step 3: Cross multiply
    52,238.13x = 78,388.32 × 18,960.79
  4. Step 4: Simplify right side
    52,238.13x = 1,486,304,473.97
  5. Step 5: Solve for x
    x = 1,486,304,473.97/52,238.13
  6. Step 6: Final answer
    x = 28,452.48

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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.