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Finding the Fourth Proportional to 80,490.76, 111,072 and 44,679.04

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Solution

The fourth proportional to 80,490.76, 111,072 and 44,679.04 is: 61,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,490.76 : 111,072 = 44,679.04 : x
  2. Step 2: Convert to fraction form
    80,490.76/111,072 = 44,679.04/x
  3. Step 3: Cross multiply
    80,490.76x = 111,072 × 44,679.04
  4. Step 4: Simplify right side
    80,490.76x = 4,962,590,330.88
  5. Step 5: Solve for x
    x = 4,962,590,330.88/80,490.76
  6. Step 6: Final answer
    x = 61,654.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.