Home / 79,440.22-119,160.27-20,275.90

Finding the Fourth Proportional to 79,440.22, 119,160.27 and 20,275.90

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Solution

The fourth proportional to 79,440.22, 119,160.27 and 20,275.90 is: 30,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440.22 : 119,160.27 = 20,275.90 : x
  2. Step 2: Convert to fraction form
    79,440.22/119,160.27 = 20,275.90/x
  3. Step 3: Cross multiply
    79,440.22x = 119,160.27 × 20,275.90
  4. Step 4: Simplify right side
    79,440.22x = 2,416,081,718.49
  5. Step 5: Solve for x
    x = 2,416,081,718.49/79,440.22
  6. Step 6: Final answer
    x = 30,413.83

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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.