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Finding the Fourth Proportional to 80,445.55, 110,621.19 and 69,816.73

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Solution

The fourth proportional to 80,445.55, 110,621.19 and 69,816.73 is: 96,005.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,445.55 : 110,621.19 = 69,816.73 : x
  2. Step 2: Convert to fraction form
    80,445.55/110,621.19 = 69,816.73/x
  3. Step 3: Cross multiply
    80,445.55x = 110,621.19 × 69,816.73
  4. Step 4: Simplify right side
    80,445.55x = 7,723,209,754.51
  5. Step 5: Solve for x
    x = 7,723,209,754.51/80,445.55
  6. Step 6: Final answer
    x = 96,005.43

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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.