Home / 57,278.28-79,043.92-31,788.56

Finding the Fourth Proportional to 57,278.28, 79,043.92 and 31,788.56

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Solution

The fourth proportional to 57,278.28, 79,043.92 and 31,788.56 is: 43,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,278.28 : 79,043.92 = 31,788.56 : x
  2. Step 2: Convert to fraction form
    57,278.28/79,043.92 = 31,788.56/x
  3. Step 3: Cross multiply
    57,278.28x = 79,043.92 × 31,788.56
  4. Step 4: Simplify right side
    57,278.28x = 2,512,692,393.56
  5. Step 5: Solve for x
    x = 2,512,692,393.56/57,278.28
  6. Step 6: Final answer
    x = 43,868.15

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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.