Home / 87,144.66-130,724.28-30,997.08

Finding the Fourth Proportional to 87,144.66, 130,724.28 and 30,997.08

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Solution

The fourth proportional to 87,144.66, 130,724.28 and 30,997.08 is: 46,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,144.66 : 130,724.28 = 30,997.08 : x
  2. Step 2: Convert to fraction form
    87,144.66/130,724.28 = 30,997.08/x
  3. Step 3: Cross multiply
    87,144.66x = 130,724.28 × 30,997.08
  4. Step 4: Simplify right side
    87,144.66x = 4,052,070,965.10
  5. Step 5: Solve for x
    x = 4,052,070,965.10/87,144.66
  6. Step 6: Final answer
    x = 46,498.21

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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.