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Finding the Fourth Proportional to 80,185.50, 110,528.51 and 63,162.79

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Solution

The fourth proportional to 80,185.50, 110,528.51 and 63,162.79 is: 87,064.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,185.50 : 110,528.51 = 63,162.79 : x
  2. Step 2: Convert to fraction form
    80,185.50/110,528.51 = 63,162.79/x
  3. Step 3: Cross multiply
    80,185.50x = 110,528.51 × 63,162.79
  4. Step 4: Simplify right side
    80,185.50x = 6,981,288,474.01
  5. Step 5: Solve for x
    x = 6,981,288,474.01/80,185.50
  6. Step 6: Final answer
    x = 87,064.23

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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.