Home / 87,220.24-130,910.40-54,005.20

Finding the Fourth Proportional to 87,220.24, 130,910.40 and 54,005.20

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Solution

The fourth proportional to 87,220.24, 130,910.40 and 54,005.20 is: 81,057.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,220.24 : 130,910.40 = 54,005.20 : x
  2. Step 2: Convert to fraction form
    87,220.24/130,910.40 = 54,005.20/x
  3. Step 3: Cross multiply
    87,220.24x = 130,910.40 × 54,005.20
  4. Step 4: Simplify right side
    87,220.24x = 7,069,842,334.08
  5. Step 5: Solve for x
    x = 7,069,842,334.08/87,220.24
  6. Step 6: Final answer
    x = 81,057.36

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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.