Home / 67,220.25-100,823.39-42,186.09

Finding the Fourth Proportional to 67,220.25, 100,823.39 and 42,186.09

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Solution

The fourth proportional to 67,220.25, 100,823.39 and 42,186.09 is: 63,274.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,220.25 : 100,823.39 = 42,186.09 : x
  2. Step 2: Convert to fraction form
    67,220.25/100,823.39 = 42,186.09/x
  3. Step 3: Cross multiply
    67,220.25x = 100,823.39 × 42,186.09
  4. Step 4: Simplify right side
    67,220.25x = 4,253,344,173.82
  5. Step 5: Solve for x
    x = 4,253,344,173.82/67,220.25
  6. Step 6: Final answer
    x = 63,274.74

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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.