Home / 57,743.13-79,685.76-31,247.13

Finding the Fourth Proportional to 57,743.13, 79,685.76 and 31,247.13

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Solution

The fourth proportional to 57,743.13, 79,685.76 and 31,247.13 is: 43,121.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,743.13 : 79,685.76 = 31,247.13 : x
  2. Step 2: Convert to fraction form
    57,743.13/79,685.76 = 31,247.13/x
  3. Step 3: Cross multiply
    57,743.13x = 79,685.76 × 31,247.13
  4. Step 4: Simplify right side
    57,743.13x = 2,489,950,747.20
  5. Step 5: Solve for x
    x = 2,489,950,747.20/57,743.13
  6. Step 6: Final answer
    x = 43,121.16

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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.