Home / 87,159.27-130,726.50-27,987.27

Finding the Fourth Proportional to 87,159.27, 130,726.50 and 27,987.27

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Solution

The fourth proportional to 87,159.27, 130,726.50 and 27,987.27 is: 41,976.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,159.27 : 130,726.50 = 27,987.27 : x
  2. Step 2: Convert to fraction form
    87,159.27/130,726.50 = 27,987.27/x
  3. Step 3: Cross multiply
    87,159.27x = 130,726.50 × 27,987.27
  4. Step 4: Simplify right side
    87,159.27x = 3,658,677,851.66
  5. Step 5: Solve for x
    x = 3,658,677,851.66/87,159.27
  6. Step 6: Final answer
    x = 41,976.92

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1.5x scale

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.