Home / 53,331.57-79,940.46-40,143.15

Finding the Fourth Proportional to 53,331.57, 79,940.46 and 40,143.15

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Solution

The fourth proportional to 53,331.57, 79,940.46 and 40,143.15 is: 60,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,331.57 : 79,940.46 = 40,143.15 : x
  2. Step 2: Convert to fraction form
    53,331.57/79,940.46 = 40,143.15/x
  3. Step 3: Cross multiply
    53,331.57x = 79,940.46 × 40,143.15
  4. Step 4: Simplify right side
    53,331.57x = 3,209,061,876.85
  5. Step 5: Solve for x
    x = 3,209,061,876.85/53,331.57
  6. Step 6: Final answer
    x = 60,171.90

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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.