Home / 91,885.20-126,821.34-56,067.54

Finding the Fourth Proportional to 91,885.20, 126,821.34 and 56,067.54

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Solution

The fourth proportional to 91,885.20, 126,821.34 and 56,067.54 is: 77,385.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,885.20 : 126,821.34 = 56,067.54 : x
  2. Step 2: Convert to fraction form
    91,885.20/126,821.34 = 56,067.54/x
  3. Step 3: Cross multiply
    91,885.20x = 126,821.34 × 56,067.54
  4. Step 4: Simplify right side
    91,885.20x = 7,110,560,553.30
  5. Step 5: Solve for x
    x = 7,110,560,553.30/91,885.20
  6. Step 6: Final answer
    x = 77,385.27

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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.