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Finding the Fourth Proportional to 86,008.80, 129,019.29 and 22,828.41

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Solution

The fourth proportional to 86,008.80, 129,019.29 and 22,828.41 is: 34,244.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,008.80 : 129,019.29 = 22,828.41 : x
  2. Step 2: Convert to fraction form
    86,008.80/129,019.29 = 22,828.41/x
  3. Step 3: Cross multiply
    86,008.80x = 129,019.29 × 22,828.41
  4. Step 4: Simplify right side
    86,008.80x = 2,945,305,250.03
  5. Step 5: Solve for x
    x = 2,945,305,250.03/86,008.80
  6. Step 6: Final answer
    x = 34,244.23

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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.