Home / 57,960.20-86,918.70-40,377.80

Finding the Fourth Proportional to 57,960.20, 86,918.70 and 40,377.80

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Solution

The fourth proportional to 57,960.20, 86,918.70 and 40,377.80 is: 60,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,960.20 : 86,918.70 = 40,377.80 : x
  2. Step 2: Convert to fraction form
    57,960.20/86,918.70 = 40,377.80/x
  3. Step 3: Cross multiply
    57,960.20x = 86,918.70 × 40,377.80
  4. Step 4: Simplify right side
    57,960.20x = 3,509,585,884.86
  5. Step 5: Solve for x
    x = 3,509,585,884.86/57,960.20
  6. Step 6: Final answer
    x = 60,551.65

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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.