Home / 57,351.31-79,142.13-31,859.33

Finding the Fourth Proportional to 57,351.31, 79,142.13 and 31,859.33

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Solution

The fourth proportional to 57,351.31, 79,142.13 and 31,859.33 is: 43,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,351.31 : 79,142.13 = 31,859.33 : x
  2. Step 2: Convert to fraction form
    57,351.31/79,142.13 = 31,859.33/x
  3. Step 3: Cross multiply
    57,351.31x = 79,142.13 × 31,859.33
  4. Step 4: Simplify right side
    57,351.31x = 2,521,414,840.86
  5. Step 5: Solve for x
    x = 2,521,414,840.86/57,351.31
  6. Step 6: Final answer
    x = 43,964.38

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1.5x scale

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.