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Finding the Fourth Proportional to 80,363.48, 110,879.17 and 63,314.90

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Solution

The fourth proportional to 80,363.48, 110,879.17 and 63,314.90 is: 87,356.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,363.48 : 110,879.17 = 63,314.90 : x
  2. Step 2: Convert to fraction form
    80,363.48/110,879.17 = 63,314.90/x
  3. Step 3: Cross multiply
    80,363.48x = 110,879.17 × 63,314.90
  4. Step 4: Simplify right side
    80,363.48x = 7,020,303,263.75
  5. Step 5: Solve for x
    x = 7,020,303,263.75/80,363.48
  6. Step 6: Final answer
    x = 87,356.89

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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.