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Finding the Fourth Proportional to 80,365.65, 110,776.52 and 63,343.50

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Solution

The fourth proportional to 80,365.65, 110,776.52 and 63,343.50 is: 87,313.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,365.65 : 110,776.52 = 63,343.50 : x
  2. Step 2: Convert to fraction form
    80,365.65/110,776.52 = 63,343.50/x
  3. Step 3: Cross multiply
    80,365.65x = 110,776.52 × 63,343.50
  4. Step 4: Simplify right side
    80,365.65x = 7,016,972,177.90
  5. Step 5: Solve for x
    x = 7,016,972,177.90/80,365.65
  6. Step 6: Final answer
    x = 87,313.08

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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.