Home / 86,591.90-129,773.03-44,470.28

Finding the Fourth Proportional to 86,591.90, 129,773.03 and 44,470.28

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Solution

The fourth proportional to 86,591.90, 129,773.03 and 44,470.28 is: 66,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,591.90 : 129,773.03 = 44,470.28 : x
  2. Step 2: Convert to fraction form
    86,591.90/129,773.03 = 44,470.28/x
  3. Step 3: Cross multiply
    86,591.90x = 129,773.03 × 44,470.28
  4. Step 4: Simplify right side
    86,591.90x = 5,771,042,109.33
  5. Step 5: Solve for x
    x = 5,771,042,109.33/86,591.90
  6. Step 6: Final answer
    x = 66,646.45

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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.