Home / 47,761.12-65,891.10-28,865.44

Finding the Fourth Proportional to 47,761.12, 65,891.10 and 28,865.44

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Solution

The fourth proportional to 47,761.12, 65,891.10 and 28,865.44 is: 39,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,761.12 : 65,891.10 = 28,865.44 : x
  2. Step 2: Convert to fraction form
    47,761.12/65,891.10 = 28,865.44/x
  3. Step 3: Cross multiply
    47,761.12x = 65,891.10 × 28,865.44
  4. Step 4: Simplify right side
    47,761.12x = 1,901,975,593.58
  5. Step 5: Solve for x
    x = 1,901,975,593.58/47,761.12
  6. Step 6: Final answer
    x = 39,822.68

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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.