Home / 47,761.25-65,891.27-28,865.57

Finding the Fourth Proportional to 47,761.25, 65,891.27 and 28,865.57

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Solution

The fourth proportional to 47,761.25, 65,891.27 and 28,865.57 is: 39,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,761.25 : 65,891.27 = 28,865.57 : x
  2. Step 2: Convert to fraction form
    47,761.25/65,891.27 = 28,865.57/x
  3. Step 3: Cross multiply
    47,761.25x = 65,891.27 × 28,865.57
  4. Step 4: Simplify right side
    47,761.25x = 1,901,988,809.28
  5. Step 5: Solve for x
    x = 1,901,988,809.28/47,761.25
  6. Step 6: Final answer
    x = 39,822.85

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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.