Home / 57,275.73-79,040.96-31,782.20

Finding the Fourth Proportional to 57,275.73, 79,040.96 and 31,782.20

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Solution

The fourth proportional to 57,275.73, 79,040.96 and 31,782.20 is: 43,859.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,275.73 : 79,040.96 = 31,782.20 : x
  2. Step 2: Convert to fraction form
    57,275.73/79,040.96 = 31,782.20/x
  3. Step 3: Cross multiply
    57,275.73x = 79,040.96 × 31,782.20
  4. Step 4: Simplify right side
    57,275.73x = 2,512,095,044.80
  5. Step 5: Solve for x
    x = 2,512,095,044.80/57,275.73
  6. Step 6: Final answer
    x = 43,859.68

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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.