Home / 52,640.38-72,637.36-29,979.42

Finding the Fourth Proportional to 52,640.38, 72,637.36 and 29,979.42

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Solution

The fourth proportional to 52,640.38, 72,637.36 and 29,979.42 is: 41,367.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,640.38 : 72,637.36 = 29,979.42 : x
  2. Step 2: Convert to fraction form
    52,640.38/72,637.36 = 29,979.42/x
  3. Step 3: Cross multiply
    52,640.38x = 72,637.36 × 29,979.42
  4. Step 4: Simplify right side
    52,640.38x = 2,177,625,923.13
  5. Step 5: Solve for x
    x = 2,177,625,923.13/52,640.38
  6. Step 6: Final answer
    x = 41,367.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.