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Finding the Fourth Proportional to 85,261.92, 127,904.56 and 29,086.95

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Solution

The fourth proportional to 85,261.92, 127,904.56 and 29,086.95 is: 43,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,261.92 : 127,904.56 = 29,086.95 : x
  2. Step 2: Convert to fraction form
    85,261.92/127,904.56 = 29,086.95/x
  3. Step 3: Cross multiply
    85,261.92x = 127,904.56 × 29,086.95
  4. Step 4: Simplify right side
    85,261.92x = 3,720,353,583.61
  5. Step 5: Solve for x
    x = 3,720,353,583.61/85,261.92
  6. Step 6: Final answer
    x = 43,634.41

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1.5x scale

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.