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Finding the Fourth Proportional to 80,139.66, 110,592.72 and 43,841.40

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Solution

The fourth proportional to 80,139.66, 110,592.72 and 43,841.40 is: 60,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,139.66 : 110,592.72 = 43,841.40 : x
  2. Step 2: Convert to fraction form
    80,139.66/110,592.72 = 43,841.40/x
  3. Step 3: Cross multiply
    80,139.66x = 110,592.72 × 43,841.40
  4. Step 4: Simplify right side
    80,139.66x = 4,848,539,674.61
  5. Step 5: Solve for x
    x = 4,848,539,674.61/80,139.66
  6. Step 6: Final answer
    x = 60,501.13

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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.