Home / 86,179.86-129,255.18-23,835.78

Finding the Fourth Proportional to 86,179.86, 129,255.18 and 23,835.78

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Solution

The fourth proportional to 86,179.86, 129,255.18 and 23,835.78 is: 35,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,179.86 : 129,255.18 = 23,835.78 : x
  2. Step 2: Convert to fraction form
    86,179.86/129,255.18 = 23,835.78/x
  3. Step 3: Cross multiply
    86,179.86x = 129,255.18 × 23,835.78
  4. Step 4: Simplify right side
    86,179.86x = 3,080,898,034.34
  5. Step 5: Solve for x
    x = 3,080,898,034.34/86,179.86
  6. Step 6: Final answer
    x = 35,749.63

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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.