Home / 81,234.48-121,854.24-22,069.92

Finding the Fourth Proportional to 81,234.48, 121,854.24 and 22,069.92

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Solution

The fourth proportional to 81,234.48, 121,854.24 and 22,069.92 is: 33,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,234.48 : 121,854.24 = 22,069.92 : x
  2. Step 2: Convert to fraction form
    81,234.48/121,854.24 = 22,069.92/x
  3. Step 3: Cross multiply
    81,234.48x = 121,854.24 × 22,069.92
  4. Step 4: Simplify right side
    81,234.48x = 2,689,313,328.46
  5. Step 5: Solve for x
    x = 2,689,313,328.46/81,234.48
  6. Step 6: Final answer
    x = 33,105.56

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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.