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Finding the Fourth Proportional to 86,175.70, 129,260.21 and 44,055.29

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Solution

The fourth proportional to 86,175.70, 129,260.21 and 44,055.29 is: 66,081.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,175.70 : 129,260.21 = 44,055.29 : x
  2. Step 2: Convert to fraction form
    86,175.70/129,260.21 = 44,055.29/x
  3. Step 3: Cross multiply
    86,175.70x = 129,260.21 × 44,055.29
  4. Step 4: Simplify right side
    86,175.70x = 5,694,596,139.88
  5. Step 5: Solve for x
    x = 5,694,596,139.88/86,175.70
  6. Step 6: Final answer
    x = 66,081.23

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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.