Home / 57,400.55-79,273.28-51,138.89

Finding the Fourth Proportional to 57,400.55, 79,273.28 and 51,138.89

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Solution

The fourth proportional to 57,400.55, 79,273.28 and 51,138.89 is: 70,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,400.55 : 79,273.28 = 51,138.89 : x
  2. Step 2: Convert to fraction form
    57,400.55/79,273.28 = 51,138.89/x
  3. Step 3: Cross multiply
    57,400.55x = 79,273.28 × 51,138.89
  4. Step 4: Simplify right side
    57,400.55x = 4,053,948,020.53
  5. Step 5: Solve for x
    x = 4,053,948,020.53/57,400.55
  6. Step 6: Final answer
    x = 70,625.60

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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.