Home / 40,757.20-61,045.48-31,327.80

Finding the Fourth Proportional to 40,757.20, 61,045.48 and 31,327.80

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Solution

The fourth proportional to 40,757.20, 61,045.48 and 31,327.80 is: 46,922.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,757.20 : 61,045.48 = 31,327.80 : x
  2. Step 2: Convert to fraction form
    40,757.20/61,045.48 = 31,327.80/x
  3. Step 3: Cross multiply
    40,757.20x = 61,045.48 × 31,327.80
  4. Step 4: Simplify right side
    40,757.20x = 1,912,420,588.34
  5. Step 5: Solve for x
    x = 1,912,420,588.34/40,757.20
  6. Step 6: Final answer
    x = 46,922.28

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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.