Home / 67,198.20-92,733.49-38,903.28

Finding the Fourth Proportional to 67,198.20, 92,733.49 and 38,903.28

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Solution

The fourth proportional to 67,198.20, 92,733.49 and 38,903.28 is: 53,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,198.20 : 92,733.49 = 38,903.28 : x
  2. Step 2: Convert to fraction form
    67,198.20/92,733.49 = 38,903.28/x
  3. Step 3: Cross multiply
    67,198.20x = 92,733.49 × 38,903.28
  4. Step 4: Simplify right side
    67,198.20x = 3,607,636,926.85
  5. Step 5: Solve for x
    x = 3,607,636,926.85/67,198.20
  6. Step 6: Final answer
    x = 53,686.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.