Home / 47,787.80-65,939.92-27,640.66

Finding the Fourth Proportional to 47,787.80, 65,939.92 and 27,640.66

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Solution

The fourth proportional to 47,787.80, 65,939.92 and 27,640.66 is: 38,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,787.80 : 65,939.92 = 27,640.66 : x
  2. Step 2: Convert to fraction form
    47,787.80/65,939.92 = 27,640.66/x
  3. Step 3: Cross multiply
    47,787.80x = 65,939.92 × 27,640.66
  4. Step 4: Simplify right side
    47,787.80x = 1,822,622,909.15
  5. Step 5: Solve for x
    x = 1,822,622,909.15/47,787.80
  6. Step 6: Final answer
    x = 38,139.92

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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.