Home / 80,996.75-121,536.12-54,646.14

Finding the Fourth Proportional to 80,996.75, 121,536.12 and 54,646.14

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Solution

The fourth proportional to 80,996.75, 121,536.12 and 54,646.14 is: 81,996.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,996.75 : 121,536.12 = 54,646.14 : x
  2. Step 2: Convert to fraction form
    80,996.75/121,536.12 = 54,646.14/x
  3. Step 3: Cross multiply
    80,996.75x = 121,536.12 × 54,646.14
  4. Step 4: Simplify right side
    80,996.75x = 6,641,479,828.58
  5. Step 5: Solve for x
    x = 6,641,479,828.58/80,996.75
  6. Step 6: Final answer
    x = 81,996.87

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1.5x scale

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.