Home / 57,057.26-78,732.92-31,559.56

Finding the Fourth Proportional to 57,057.26, 78,732.92 and 31,559.56

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Solution

The fourth proportional to 57,057.26, 78,732.92 and 31,559.56 is: 43,548.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,057.26 : 78,732.92 = 31,559.56 : x
  2. Step 2: Convert to fraction form
    57,057.26/78,732.92 = 31,559.56/x
  3. Step 3: Cross multiply
    57,057.26x = 78,732.92 × 31,559.56
  4. Step 4: Simplify right side
    57,057.26x = 2,484,776,194.78
  5. Step 5: Solve for x
    x = 2,484,776,194.78/57,057.26
  6. Step 6: Final answer
    x = 43,548.82

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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.