Home / 86,287.28-129,378.06-33,635.25

Finding the Fourth Proportional to 86,287.28, 129,378.06 and 33,635.25

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Solution

The fourth proportional to 86,287.28, 129,378.06 and 33,635.25 is: 50,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,287.28 : 129,378.06 = 33,635.25 : x
  2. Step 2: Convert to fraction form
    86,287.28/129,378.06 = 33,635.25/x
  3. Step 3: Cross multiply
    86,287.28x = 129,378.06 × 33,635.25
  4. Step 4: Simplify right side
    86,287.28x = 4,351,663,392.62
  5. Step 5: Solve for x
    x = 4,351,663,392.62/86,287.28
  6. Step 6: Final answer
    x = 50,432.27

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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.