Home / 55,091.90-82,613.24-15,639.78

Finding the Fourth Proportional to 55,091.90, 82,613.24 and 15,639.78

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Solution

The fourth proportional to 55,091.90, 82,613.24 and 15,639.78 is: 23,452.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,091.90 : 82,613.24 = 15,639.78 : x
  2. Step 2: Convert to fraction form
    55,091.90/82,613.24 = 15,639.78/x
  3. Step 3: Cross multiply
    55,091.90x = 82,613.24 × 15,639.78
  4. Step 4: Simplify right side
    55,091.90x = 1,292,053,232.92
  5. Step 5: Solve for x
    x = 1,292,053,232.92/55,091.90
  6. Step 6: Final answer
    x = 23,452.69

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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.