Home / 67,037.80-100,578.57-31,972.90

Finding the Fourth Proportional to 67,037.80, 100,578.57 and 31,972.90

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Solution

The fourth proportional to 67,037.80, 100,578.57 and 31,972.90 is: 47,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,037.80 : 100,578.57 = 31,972.90 : x
  2. Step 2: Convert to fraction form
    67,037.80/100,578.57 = 31,972.90/x
  3. Step 3: Cross multiply
    67,037.80x = 100,578.57 × 31,972.90
  4. Step 4: Simplify right side
    67,037.80x = 3,215,788,560.75
  5. Step 5: Solve for x
    x = 3,215,788,560.75/67,037.80
  6. Step 6: Final answer
    x = 47,969.78

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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.