Home / 80,806.14-120,959.60-52,665.66

Finding the Fourth Proportional to 80,806.14, 120,959.60 and 52,665.66

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Solution

The fourth proportional to 80,806.14, 120,959.60 and 52,665.66 is: 78,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,806.14 : 120,959.60 = 52,665.66 : x
  2. Step 2: Convert to fraction form
    80,806.14/120,959.60 = 52,665.66/x
  3. Step 3: Cross multiply
    80,806.14x = 120,959.60 × 52,665.66
  4. Step 4: Simplify right side
    80,806.14x = 6,370,416,904.01
  5. Step 5: Solve for x
    x = 6,370,416,904.01/80,806.14
  6. Step 6: Final answer
    x = 78,835.80

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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.