Home / 85,879.11-118,514.40-51,882.87

Finding the Fourth Proportional to 85,879.11, 118,514.40 and 51,882.87

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Solution

The fourth proportional to 85,879.11, 118,514.40 and 51,882.87 is: 71,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,879.11 : 118,514.40 = 51,882.87 : x
  2. Step 2: Convert to fraction form
    85,879.11/118,514.40 = 51,882.87/x
  3. Step 3: Cross multiply
    85,879.11x = 118,514.40 × 51,882.87
  4. Step 4: Simplify right side
    85,879.11x = 6,148,867,208.33
  5. Step 5: Solve for x
    x = 6,148,867,208.33/85,879.11
  6. Step 6: Final answer
    x = 71,599.10

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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.