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Finding the Fourth Proportional to 86,361.38, 129,302.88 and 44,150.60

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Solution

The fourth proportional to 86,361.38, 129,302.88 and 44,150.60 is: 66,103.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,361.38 : 129,302.88 = 44,150.60 : x
  2. Step 2: Convert to fraction form
    86,361.38/129,302.88 = 44,150.60/x
  3. Step 3: Cross multiply
    86,361.38x = 129,302.88 × 44,150.60
  4. Step 4: Simplify right side
    86,361.38x = 5,708,799,733.73
  5. Step 5: Solve for x
    x = 5,708,799,733.73/86,361.38
  6. Step 6: Final answer
    x = 66,103.62

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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.