Home / 86,041.28-129,080.15-26,881.41

Finding the Fourth Proportional to 86,041.28, 129,080.15 and 26,881.41

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Solution

The fourth proportional to 86,041.28, 129,080.15 and 26,881.41 is: 40,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,041.28 : 129,080.15 = 26,881.41 : x
  2. Step 2: Convert to fraction form
    86,041.28/129,080.15 = 26,881.41/x
  3. Step 3: Cross multiply
    86,041.28x = 129,080.15 × 26,881.41
  4. Step 4: Simplify right side
    86,041.28x = 3,469,856,300.60
  5. Step 5: Solve for x
    x = 3,469,856,300.60/86,041.28
  6. Step 6: Final answer
    x = 40,327.81

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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.