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Finding the Fourth Proportional to 80,342.55, 110,817.32 and 48,470.67

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Solution

The fourth proportional to 80,342.55, 110,817.32 and 48,470.67 is: 66,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,342.55 : 110,817.32 = 48,470.67 : x
  2. Step 2: Convert to fraction form
    80,342.55/110,817.32 = 48,470.67/x
  3. Step 3: Cross multiply
    80,342.55x = 110,817.32 × 48,470.67
  4. Step 4: Simplify right side
    80,342.55x = 5,371,389,505.65
  5. Step 5: Solve for x
    x = 5,371,389,505.65/80,342.55
  6. Step 6: Final answer
    x = 66,856.10

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1.5x scale

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.