Home / 57,931.38-79,953.86-36,712.58

Finding the Fourth Proportional to 57,931.38, 79,953.86 and 36,712.58

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Solution

The fourth proportional to 57,931.38, 79,953.86 and 36,712.58 is: 50,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931.38 : 79,953.86 = 36,712.58 : x
  2. Step 2: Convert to fraction form
    57,931.38/79,953.86 = 36,712.58/x
  3. Step 3: Cross multiply
    57,931.38x = 79,953.86 × 36,712.58
  4. Step 4: Simplify right side
    57,931.38x = 2,935,312,481.56
  5. Step 5: Solve for x
    x = 2,935,312,481.56/57,931.38
  6. Step 6: Final answer
    x = 50,668.78

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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.