Home / 48,787.12-67,348.56-28,640.80

Finding the Fourth Proportional to 48,787.12, 67,348.56 and 28,640.80

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Solution

The fourth proportional to 48,787.12, 67,348.56 and 28,640.80 is: 39,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,787.12 : 67,348.56 = 28,640.80 : x
  2. Step 2: Convert to fraction form
    48,787.12/67,348.56 = 28,640.80/x
  3. Step 3: Cross multiply
    48,787.12x = 67,348.56 × 28,640.80
  4. Step 4: Simplify right side
    48,787.12x = 1,928,916,637.25
  5. Step 5: Solve for x
    x = 1,928,916,637.25/48,787.12
  6. Step 6: Final answer
    x = 39,537.42

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1.5x scale

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.