Home / 80,512.07-120,734.33-30,564.63

Finding the Fourth Proportional to 80,512.07, 120,734.33 and 30,564.63

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Solution

The fourth proportional to 80,512.07, 120,734.33 and 30,564.63 is: 45,834.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,512.07 : 120,734.33 = 30,564.63 : x
  2. Step 2: Convert to fraction form
    80,512.07/120,734.33 = 30,564.63/x
  3. Step 3: Cross multiply
    80,512.07x = 120,734.33 × 30,564.63
  4. Step 4: Simplify right side
    80,512.07x = 3,690,199,971.92
  5. Step 5: Solve for x
    x = 3,690,199,971.92/80,512.07
  6. Step 6: Final answer
    x = 45,834.12

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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.