Home / 67,117.25-100,676.48-20,370.13

Finding the Fourth Proportional to 67,117.25, 100,676.48 and 20,370.13

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Solution

The fourth proportional to 67,117.25, 100,676.48 and 20,370.13 is: 30,555.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,117.25 : 100,676.48 = 20,370.13 : x
  2. Step 2: Convert to fraction form
    67,117.25/100,676.48 = 20,370.13/x
  3. Step 3: Cross multiply
    67,117.25x = 100,676.48 × 20,370.13
  4. Step 4: Simplify right side
    67,117.25x = 2,050,792,985.54
  5. Step 5: Solve for x
    x = 2,050,792,985.54/67,117.25
  6. Step 6: Final answer
    x = 30,555.38

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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.