Home / 57,338.28-79,143.66-38,245.86

Finding the Fourth Proportional to 57,338.28, 79,143.66 and 38,245.86

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Solution

The fourth proportional to 57,338.28, 79,143.66 and 38,245.86 is: 52,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,338.28 : 79,143.66 = 38,245.86 : x
  2. Step 2: Convert to fraction form
    57,338.28/79,143.66 = 38,245.86/x
  3. Step 3: Cross multiply
    57,338.28x = 79,143.66 × 38,245.86
  4. Step 4: Simplify right side
    57,338.28x = 3,026,917,340.25
  5. Step 5: Solve for x
    x = 3,026,917,340.25/57,338.28
  6. Step 6: Final answer
    x = 52,790.52

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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.