Home / 85,876.11-118,510.25-51,879.87

Finding the Fourth Proportional to 85,876.11, 118,510.25 and 51,879.87

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Solution

The fourth proportional to 85,876.11, 118,510.25 and 51,879.87 is: 71,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,876.11 : 118,510.25 = 51,879.87 : x
  2. Step 2: Convert to fraction form
    85,876.11/118,510.25 = 51,879.87/x
  3. Step 3: Cross multiply
    85,876.11x = 118,510.25 × 51,879.87
  4. Step 4: Simplify right side
    85,876.11x = 6,148,296,104.27
  5. Step 5: Solve for x
    x = 6,148,296,104.27/85,876.11
  6. Step 6: Final answer
    x = 71,594.95

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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.