Home / 87,008.10-130,512.09-21,344.10

Finding the Fourth Proportional to 87,008.10, 130,512.09 and 21,344.10

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Solution

The fourth proportional to 87,008.10, 130,512.09 and 21,344.10 is: 32,016.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,008.10 : 130,512.09 = 21,344.10 : x
  2. Step 2: Convert to fraction form
    87,008.10/130,512.09 = 21,344.10/x
  3. Step 3: Cross multiply
    87,008.10x = 130,512.09 × 21,344.10
  4. Step 4: Simplify right side
    87,008.10x = 2,785,663,100.17
  5. Step 5: Solve for x
    x = 2,785,663,100.17/87,008.10
  6. Step 6: Final answer
    x = 32,016.14

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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.