Home / 55,229.20-82,843.80-15,787.60

Finding the Fourth Proportional to 55,229.20, 82,843.80 and 15,787.60

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Solution

The fourth proportional to 55,229.20, 82,843.80 and 15,787.60 is: 23,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,229.20 : 82,843.80 = 15,787.60 : x
  2. Step 2: Convert to fraction form
    55,229.20/82,843.80 = 15,787.60/x
  3. Step 3: Cross multiply
    55,229.20x = 82,843.80 × 15,787.60
  4. Step 4: Simplify right side
    55,229.20x = 1,307,904,776.88
  5. Step 5: Solve for x
    x = 1,307,904,776.88/55,229.20
  6. Step 6: Final answer
    x = 23,681.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.