Home / 47,787.12-65,949.92-28,667.61

Finding the Fourth Proportional to 47,787.12, 65,949.92 and 28,667.61

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Solution

The fourth proportional to 47,787.12, 65,949.92 and 28,667.61 is: 39,563.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,787.12 : 65,949.92 = 28,667.61 : x
  2. Step 2: Convert to fraction form
    47,787.12/65,949.92 = 28,667.61/x
  3. Step 3: Cross multiply
    47,787.12x = 65,949.92 × 28,667.61
  4. Step 4: Simplify right side
    47,787.12x = 1,890,626,442.75
  5. Step 5: Solve for x
    x = 1,890,626,442.75/47,787.12
  6. Step 6: Final answer
    x = 39,563.52

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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.