Home / 80,979.42-121,219.92-52,838.94

Finding the Fourth Proportional to 80,979.42, 121,219.92 and 52,838.94

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Solution

The fourth proportional to 80,979.42, 121,219.92 and 52,838.94 is: 79,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,979.42 : 121,219.92 = 52,838.94 : x
  2. Step 2: Convert to fraction form
    80,979.42/121,219.92 = 52,838.94/x
  3. Step 3: Cross multiply
    80,979.42x = 121,219.92 × 52,838.94
  4. Step 4: Simplify right side
    80,979.42x = 6,405,132,079.68
  5. Step 5: Solve for x
    x = 6,405,132,079.68/80,979.42
  6. Step 6: Final answer
    x = 79,095.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.