Home / 55,231.20-82,628.10-47,916.90

Finding the Fourth Proportional to 55,231.20, 82,628.10 and 47,916.90

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Solution

The fourth proportional to 55,231.20, 82,628.10 and 47,916.90 is: 71,685.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,231.20 : 82,628.10 = 47,916.90 : x
  2. Step 2: Convert to fraction form
    55,231.20/82,628.10 = 47,916.90/x
  3. Step 3: Cross multiply
    55,231.20x = 82,628.10 × 47,916.90
  4. Step 4: Simplify right side
    55,231.20x = 3,959,282,404.89
  5. Step 5: Solve for x
    x = 3,959,282,404.89/55,231.20
  6. Step 6: Final answer
    x = 71,685.61

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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.