Home / 87,092.24-130,638.36-21,428.24

Finding the Fourth Proportional to 87,092.24, 130,638.36 and 21,428.24

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Solution

The fourth proportional to 87,092.24, 130,638.36 and 21,428.24 is: 32,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,092.24 : 130,638.36 = 21,428.24 : x
  2. Step 2: Convert to fraction form
    87,092.24/130,638.36 = 21,428.24/x
  3. Step 3: Cross multiply
    87,092.24x = 130,638.36 × 21,428.24
  4. Step 4: Simplify right side
    87,092.24x = 2,799,350,131.29
  5. Step 5: Solve for x
    x = 2,799,350,131.29/87,092.24
  6. Step 6: Final answer
    x = 32,142.36

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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.