Home / 57,275.23-79,040.26-31,781.70

Finding the Fourth Proportional to 57,275.23, 79,040.26 and 31,781.70

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Solution

The fourth proportional to 57,275.23, 79,040.26 and 31,781.70 is: 43,858.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,275.23 : 79,040.26 = 31,781.70 : x
  2. Step 2: Convert to fraction form
    57,275.23/79,040.26 = 31,781.70/x
  3. Step 3: Cross multiply
    57,275.23x = 79,040.26 × 31,781.70
  4. Step 4: Simplify right side
    57,275.23x = 2,512,033,831.24
  5. Step 5: Solve for x
    x = 2,512,033,831.24/57,275.23
  6. Step 6: Final answer
    x = 43,858.99

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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.