Home / 87,128.04-130,709.07-27,959.16

Finding the Fourth Proportional to 87,128.04, 130,709.07 and 27,959.16

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Solution

The fourth proportional to 87,128.04, 130,709.07 and 27,959.16 is: 41,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,128.04 : 130,709.07 = 27,959.16 : x
  2. Step 2: Convert to fraction form
    87,128.04/130,709.07 = 27,959.16/x
  3. Step 3: Cross multiply
    87,128.04x = 130,709.07 × 27,959.16
  4. Step 4: Simplify right side
    87,128.04x = 3,654,515,148.04
  5. Step 5: Solve for x
    x = 3,654,515,148.04/87,128.04
  6. Step 6: Final answer
    x = 41,944.19

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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.