Home / 57,057.19-78,738.46-31,906.69

Finding the Fourth Proportional to 57,057.19, 78,738.46 and 31,906.69

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Solution

The fourth proportional to 57,057.19, 78,738.46 and 31,906.69 is: 44,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,057.19 : 78,738.46 = 31,906.69 : x
  2. Step 2: Convert to fraction form
    57,057.19/78,738.46 = 31,906.69/x
  3. Step 3: Cross multiply
    57,057.19x = 78,738.46 × 31,906.69
  4. Step 4: Simplify right side
    57,057.19x = 2,512,283,634.30
  5. Step 5: Solve for x
    x = 2,512,283,634.30/57,057.19
  6. Step 6: Final answer
    x = 44,030.97

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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.