Home / 67,077.19-100,630.31-20,333.59

Finding the Fourth Proportional to 67,077.19, 100,630.31 and 20,333.59

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Solution

The fourth proportional to 67,077.19, 100,630.31 and 20,333.59 is: 30,504.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,077.19 : 100,630.31 = 20,333.59 : x
  2. Step 2: Convert to fraction form
    67,077.19/100,630.31 = 20,333.59/x
  3. Step 3: Cross multiply
    67,077.19x = 100,630.31 × 20,333.59
  4. Step 4: Simplify right side
    67,077.19x = 2,046,175,363.44
  5. Step 5: Solve for x
    x = 2,046,175,363.44/67,077.19
  6. Step 6: Final answer
    x = 30,504.79

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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.