Home / 52,132.68-78,198.98-20,960.64

Finding the Fourth Proportional to 52,132.68, 78,198.98 and 20,960.64

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Solution

The fourth proportional to 52,132.68, 78,198.98 and 20,960.64 is: 31,440.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,132.68 : 78,198.98 = 20,960.64 : x
  2. Step 2: Convert to fraction form
    52,132.68/78,198.98 = 20,960.64/x
  3. Step 3: Cross multiply
    52,132.68x = 78,198.98 × 20,960.64
  4. Step 4: Simplify right side
    52,132.68x = 1,639,100,668.15
  5. Step 5: Solve for x
    x = 1,639,100,668.15/52,132.68
  6. Step 6: Final answer
    x = 31,440.94

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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.