Home / 57,438.56-79,267.07-34,781.78

Finding the Fourth Proportional to 57,438.56, 79,267.07 and 34,781.78

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Solution

The fourth proportional to 57,438.56, 79,267.07 and 34,781.78 is: 47,999.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,438.56 : 79,267.07 = 34,781.78 : x
  2. Step 2: Convert to fraction form
    57,438.56/79,267.07 = 34,781.78/x
  3. Step 3: Cross multiply
    57,438.56x = 79,267.07 × 34,781.78
  4. Step 4: Simplify right side
    57,438.56x = 2,757,049,789.98
  5. Step 5: Solve for x
    x = 2,757,049,789.98/57,438.56
  6. Step 6: Final answer
    x = 47,999.98

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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.