Home / 87,224.24-130,916.40-54,009.20

Finding the Fourth Proportional to 87,224.24, 130,916.40 and 54,009.20

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Solution

The fourth proportional to 87,224.24, 130,916.40 and 54,009.20 is: 81,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,224.24 : 130,916.40 = 54,009.20 : x
  2. Step 2: Convert to fraction form
    87,224.24/130,916.40 = 54,009.20/x
  3. Step 3: Cross multiply
    87,224.24x = 130,916.40 × 54,009.20
  4. Step 4: Simplify right side
    87,224.24x = 7,070,690,030.88
  5. Step 5: Solve for x
    x = 7,070,690,030.88/87,224.24
  6. Step 6: Final answer
    x = 81,063.36

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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.