Home / 67,348.80-100,920-33,975.84

Finding the Fourth Proportional to 67,348.80, 100,920 and 33,975.84

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Solution

The fourth proportional to 67,348.80, 100,920 and 33,975.84 is: 50,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,348.80 : 100,920 = 33,975.84 : x
  2. Step 2: Convert to fraction form
    67,348.80/100,920 = 33,975.84/x
  3. Step 3: Cross multiply
    67,348.80x = 100,920 × 33,975.84
  4. Step 4: Simplify right side
    67,348.80x = 3,428,841,772.80
  5. Step 5: Solve for x
    x = 3,428,841,772.80/67,348.80
  6. Step 6: Final answer
    x = 50,911.70

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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.