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Finding the Fourth Proportional to 80,366.65, 110,777.89 and 63,344.50

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Solution

The fourth proportional to 80,366.65, 110,777.89 and 63,344.50 is: 87,314.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,366.65 : 110,777.89 = 63,344.50 : x
  2. Step 2: Convert to fraction form
    80,366.65/110,777.89 = 63,344.50/x
  3. Step 3: Cross multiply
    80,366.65x = 110,777.89 × 63,344.50
  4. Step 4: Simplify right side
    80,366.65x = 7,017,170,053.11
  5. Step 5: Solve for x
    x = 7,017,170,053.11/80,366.65
  6. Step 6: Final answer
    x = 87,314.45

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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.