Home / 87,112.40-130,734.36-63,799.28

Finding the Fourth Proportional to 87,112.40, 130,734.36 and 63,799.28

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Solution

The fourth proportional to 87,112.40, 130,734.36 and 63,799.28 is: 95,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,112.40 : 130,734.36 = 63,799.28 : x
  2. Step 2: Convert to fraction form
    87,112.40/130,734.36 = 63,799.28/x
  3. Step 3: Cross multiply
    87,112.40x = 130,734.36 × 63,799.28
  4. Step 4: Simplify right side
    87,112.40x = 8,340,758,039.26
  5. Step 5: Solve for x
    x = 8,340,758,039.26/87,112.40
  6. Step 6: Final answer
    x = 95,747.08

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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.