Home / 57,121.26-85,682.16-17,678.58

Finding the Fourth Proportional to 57,121.26, 85,682.16 and 17,678.58

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Solution

The fourth proportional to 57,121.26, 85,682.16 and 17,678.58 is: 26,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.26 : 85,682.16 = 17,678.58 : x
  2. Step 2: Convert to fraction form
    57,121.26/85,682.16 = 17,678.58/x
  3. Step 3: Cross multiply
    57,121.26x = 85,682.16 × 17,678.58
  4. Step 4: Simplify right side
    57,121.26x = 1,514,738,920.13
  5. Step 5: Solve for x
    x = 1,514,738,920.13/57,121.26
  6. Step 6: Final answer
    x = 26,517.95

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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.