Home / 87,121.22-130,700.07-27,148.23

Finding the Fourth Proportional to 87,121.22, 130,700.07 and 27,148.23

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Solution

The fourth proportional to 87,121.22, 130,700.07 and 27,148.23 is: 40,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,121.22 : 130,700.07 = 27,148.23 : x
  2. Step 2: Convert to fraction form
    87,121.22/130,700.07 = 27,148.23/x
  3. Step 3: Cross multiply
    87,121.22x = 130,700.07 × 27,148.23
  4. Step 4: Simplify right side
    87,121.22x = 3,548,275,561.38
  5. Step 5: Solve for x
    x = 3,548,275,561.38/87,121.22
  6. Step 6: Final answer
    x = 40,728.03

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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.