Home / 87,585.25-120,861.25-51,768.34

Finding the Fourth Proportional to 87,585.25, 120,861.25 and 51,768.34

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Solution

The fourth proportional to 87,585.25, 120,861.25 and 51,768.34 is: 71,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,585.25 : 120,861.25 = 51,768.34 : x
  2. Step 2: Convert to fraction form
    87,585.25/120,861.25 = 51,768.34/x
  3. Step 3: Cross multiply
    87,585.25x = 120,861.25 × 51,768.34
  4. Step 4: Simplify right side
    87,585.25x = 6,256,786,409.57
  5. Step 5: Solve for x
    x = 6,256,786,409.57/87,585.25
  6. Step 6: Final answer
    x = 71,436.53

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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.