Home / 57,037.32-78,709.22-31,542.02

Finding the Fourth Proportional to 57,037.32, 78,709.22 and 31,542.02

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Solution

The fourth proportional to 57,037.32, 78,709.22 and 31,542.02 is: 43,526.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037.32 : 78,709.22 = 31,542.02 : x
  2. Step 2: Convert to fraction form
    57,037.32/78,709.22 = 31,542.02/x
  3. Step 3: Cross multiply
    57,037.32x = 78,709.22 × 31,542.02
  4. Step 4: Simplify right side
    57,037.32x = 2,482,647,791.42
  5. Step 5: Solve for x
    x = 2,482,647,791.42/57,037.32
  6. Step 6: Final answer
    x = 43,526.73

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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.