Home / 75,778.65-104,572.14-41,788.57

Finding the Fourth Proportional to 75,778.65, 104,572.14 and 41,788.57

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Solution

The fourth proportional to 75,778.65, 104,572.14 and 41,788.57 is: 57,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,778.65 : 104,572.14 = 41,788.57 : x
  2. Step 2: Convert to fraction form
    75,778.65/104,572.14 = 41,788.57/x
  3. Step 3: Cross multiply
    75,778.65x = 104,572.14 × 41,788.57
  4. Step 4: Simplify right side
    75,778.65x = 4,369,920,234.96
  5. Step 5: Solve for x
    x = 4,369,920,234.96/75,778.65
  6. Step 6: Final answer
    x = 57,666.90

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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.