Home / 86,039.20-129,060.96-41,657.68

Finding the Fourth Proportional to 86,039.20, 129,060.96 and 41,657.68

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Solution

The fourth proportional to 86,039.20, 129,060.96 and 41,657.68 is: 62,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,039.20 : 129,060.96 = 41,657.68 : x
  2. Step 2: Convert to fraction form
    86,039.20/129,060.96 = 41,657.68/x
  3. Step 3: Cross multiply
    86,039.20x = 129,060.96 × 41,657.68
  4. Step 4: Simplify right side
    86,039.20x = 5,376,380,172.17
  5. Step 5: Solve for x
    x = 5,376,380,172.17/86,039.20
  6. Step 6: Final answer
    x = 62,487.57

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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.