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Finding the Fourth Proportional to 86,755.68, 130,016.88 and 34,151.04

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Solution

The fourth proportional to 86,755.68, 130,016.88 and 34,151.04 is: 51,180.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,755.68 : 130,016.88 = 34,151.04 : x
  2. Step 2: Convert to fraction form
    86,755.68/130,016.88 = 34,151.04/x
  3. Step 3: Cross multiply
    86,755.68x = 130,016.88 × 34,151.04
  4. Step 4: Simplify right side
    86,755.68x = 4,440,211,669.56
  5. Step 5: Solve for x
    x = 4,440,211,669.56/86,755.68
  6. Step 6: Final answer
    x = 51,180.65

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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.