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Finding the Fourth Proportional to 57,662, 79,561.36 and 35,012.88

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Solution

The fourth proportional to 57,662, 79,561.36 and 35,012.88 is: 48,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,662 : 79,561.36 = 35,012.88 : x
  2. Step 2: Convert to fraction form
    57,662/79,561.36 = 35,012.88/x
  3. Step 3: Cross multiply
    57,662x = 79,561.36 × 35,012.88
  4. Step 4: Simplify right side
    57,662x = 2,785,672,350.32
  5. Step 5: Solve for x
    x = 2,785,672,350.32/57,662
  6. Step 6: Final answer
    x = 48,310.37

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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.