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Finding the Fourth Proportional to 84,395.56, 126,621.06 and 34,517.62

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Solution

The fourth proportional to 84,395.56, 126,621.06 and 34,517.62 is: 51,787.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,395.56 : 126,621.06 = 34,517.62 : x
  2. Step 2: Convert to fraction form
    84,395.56/126,621.06 = 34,517.62/x
  3. Step 3: Cross multiply
    84,395.56x = 126,621.06 × 34,517.62
  4. Step 4: Simplify right side
    84,395.56x = 4,370,657,633.08
  5. Step 5: Solve for x
    x = 4,370,657,633.08/84,395.56
  6. Step 6: Final answer
    x = 51,787.77

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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.