Home / 78,851.12-118,232.92-26,231.88

Finding the Fourth Proportional to 78,851.12, 118,232.92 and 26,231.88

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Solution

The fourth proportional to 78,851.12, 118,232.92 and 26,231.88 is: 39,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,851.12 : 118,232.92 = 26,231.88 : x
  2. Step 2: Convert to fraction form
    78,851.12/118,232.92 = 26,231.88/x
  3. Step 3: Cross multiply
    78,851.12x = 118,232.92 × 26,231.88
  4. Step 4: Simplify right side
    78,851.12x = 3,101,471,769.49
  5. Step 5: Solve for x
    x = 3,101,471,769.49/78,851.12
  6. Step 6: Final answer
    x = 39,333.26

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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.