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Finding the Fourth Proportional to 85,074, 127,612.08 and 29,670

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Solution

The fourth proportional to 85,074, 127,612.08 and 29,670 is: 44,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,074 : 127,612.08 = 29,670 : x
  2. Step 2: Convert to fraction form
    85,074/127,612.08 = 29,670/x
  3. Step 3: Cross multiply
    85,074x = 127,612.08 × 29,670
  4. Step 4: Simplify right side
    85,074x = 3,786,250,413.60
  5. Step 5: Solve for x
    x = 3,786,250,413.60/85,074
  6. Step 6: Final answer
    x = 44,505.38

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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.