Home / 57,793.20-79,698.24-38,640.48

Finding the Fourth Proportional to 57,793.20, 79,698.24 and 38,640.48

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Solution

The fourth proportional to 57,793.20, 79,698.24 and 38,640.48 is: 53,286.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,793.20 : 79,698.24 = 38,640.48 : x
  2. Step 2: Convert to fraction form
    57,793.20/79,698.24 = 38,640.48/x
  3. Step 3: Cross multiply
    57,793.20x = 79,698.24 × 38,640.48
  4. Step 4: Simplify right side
    57,793.20x = 3,079,578,248.76
  5. Step 5: Solve for x
    x = 3,079,578,248.76/57,793.20
  6. Step 6: Final answer
    x = 53,286.17

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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.