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Finding the Fourth Proportional to 84,713.78, 127,049.34 and 34,807.66

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Solution

The fourth proportional to 84,713.78, 127,049.34 and 34,807.66 is: 52,202.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,713.78 : 127,049.34 = 34,807.66 : x
  2. Step 2: Convert to fraction form
    84,713.78/127,049.34 = 34,807.66/x
  3. Step 3: Cross multiply
    84,713.78x = 127,049.34 × 34,807.66
  4. Step 4: Simplify right side
    84,713.78x = 4,422,290,042.85
  5. Step 5: Solve for x
    x = 4,422,290,042.85/84,713.78
  6. Step 6: Final answer
    x = 52,202.72

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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.