Home / 86,125.56-118,864.20-48,399.78

Finding the Fourth Proportional to 86,125.56, 118,864.20 and 48,399.78

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Solution

The fourth proportional to 86,125.56, 118,864.20 and 48,399.78 is: 66,797.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,125.56 : 118,864.20 = 48,399.78 : x
  2. Step 2: Convert to fraction form
    86,125.56/118,864.20 = 48,399.78/x
  3. Step 3: Cross multiply
    86,125.56x = 118,864.20 × 48,399.78
  4. Step 4: Simplify right side
    86,125.56x = 5,753,001,129.88
  5. Step 5: Solve for x
    x = 5,753,001,129.88/86,125.56
  6. Step 6: Final answer
    x = 66,797.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.