Home / 87,982.38-121,399.05-52,159.32

Finding the Fourth Proportional to 87,982.38, 121,399.05 and 52,159.32

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Solution

The fourth proportional to 87,982.38, 121,399.05 and 52,159.32 is: 71,970.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,982.38 : 121,399.05 = 52,159.32 : x
  2. Step 2: Convert to fraction form
    87,982.38/121,399.05 = 52,159.32/x
  3. Step 3: Cross multiply
    87,982.38x = 121,399.05 × 52,159.32
  4. Step 4: Simplify right side
    87,982.38x = 6,332,091,896.65
  5. Step 5: Solve for x
    x = 6,332,091,896.65/87,982.38
  6. Step 6: Final answer
    x = 71,970.00

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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.