Home / 68,065.91-93,917.20-39,766.13

Finding the Fourth Proportional to 68,065.91, 93,917.20 and 39,766.13

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Solution

The fourth proportional to 68,065.91, 93,917.20 and 39,766.13 is: 54,869.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,065.91 : 93,917.20 = 39,766.13 : x
  2. Step 2: Convert to fraction form
    68,065.91/93,917.20 = 39,766.13/x
  3. Step 3: Cross multiply
    68,065.91x = 93,917.20 × 39,766.13
  4. Step 4: Simplify right side
    68,065.91x = 3,734,723,620.40
  5. Step 5: Solve for x
    x = 3,734,723,620.40/68,065.91
  6. Step 6: Final answer
    x = 54,869.22

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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.