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Finding the Fourth Proportional to 85,310.54, 127,695.91 and 53,610.91

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Solution

The fourth proportional to 85,310.54, 127,695.91 and 53,610.91 is: 80,246.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,310.54 : 127,695.91 = 53,610.91 : x
  2. Step 2: Convert to fraction form
    85,310.54/127,695.91 = 53,610.91/x
  3. Step 3: Cross multiply
    85,310.54x = 127,695.91 × 53,610.91
  4. Step 4: Simplify right side
    85,310.54x = 6,845,893,608.93
  5. Step 5: Solve for x
    x = 6,845,893,608.93/85,310.54
  6. Step 6: Final answer
    x = 80,246.75

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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.