Home / 57,272.94-79,041.42-31,781.70

Finding the Fourth Proportional to 57,272.94, 79,041.42 and 31,781.70

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Solution

The fourth proportional to 57,272.94, 79,041.42 and 31,781.70 is: 43,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,272.94 : 79,041.42 = 31,781.70 : x
  2. Step 2: Convert to fraction form
    57,272.94/79,041.42 = 31,781.70/x
  3. Step 3: Cross multiply
    57,272.94x = 79,041.42 × 31,781.70
  4. Step 4: Simplify right side
    57,272.94x = 2,512,070,698.01
  5. Step 5: Solve for x
    x = 2,512,070,698.01/57,272.94
  6. Step 6: Final answer
    x = 43,861.39

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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.