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Finding the Fourth Proportional to 84,834.70, 127,252.05 and 49,405.30

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Solution

The fourth proportional to 84,834.70, 127,252.05 and 49,405.30 is: 74,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,834.70 : 127,252.05 = 49,405.30 : x
  2. Step 2: Convert to fraction form
    84,834.70/127,252.05 = 49,405.30/x
  3. Step 3: Cross multiply
    84,834.70x = 127,252.05 × 49,405.30
  4. Step 4: Simplify right side
    84,834.70x = 6,286,925,705.87
  5. Step 5: Solve for x
    x = 6,286,925,705.87/84,834.70
  6. Step 6: Final answer
    x = 74,107.95

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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.