Home / 87,260.40-130,822.56-40,507.20

Finding the Fourth Proportional to 87,260.40, 130,822.56 and 40,507.20

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Solution

The fourth proportional to 87,260.40, 130,822.56 and 40,507.20 is: 60,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,260.40 : 130,822.56 = 40,507.20 : x
  2. Step 2: Convert to fraction form
    87,260.40/130,822.56 = 40,507.20/x
  3. Step 3: Cross multiply
    87,260.40x = 130,822.56 × 40,507.20
  4. Step 4: Simplify right side
    87,260.40x = 5,299,255,602.43
  5. Step 5: Solve for x
    x = 5,299,255,602.43/87,260.40
  6. Step 6: Final answer
    x = 60,729.22

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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.