Home / 85,751.20-118,342.92-51,768.04

Finding the Fourth Proportional to 85,751.20, 118,342.92 and 51,768.04

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Solution

The fourth proportional to 85,751.20, 118,342.92 and 51,768.04 is: 71,443.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,751.20 : 118,342.92 = 51,768.04 : x
  2. Step 2: Convert to fraction form
    85,751.20/118,342.92 = 51,768.04/x
  3. Step 3: Cross multiply
    85,751.20x = 118,342.92 × 51,768.04
  4. Step 4: Simplify right side
    85,751.20x = 6,126,381,016.28
  5. Step 5: Solve for x
    x = 6,126,381,016.28/85,751.20
  6. Step 6: Final answer
    x = 71,443.68

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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.