Home / 67,288.11-100,736.57-39,122.28

Finding the Fourth Proportional to 67,288.11, 100,736.57 and 39,122.28

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Solution

The fourth proportional to 67,288.11, 100,736.57 and 39,122.28 is: 58,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,288.11 : 100,736.57 = 39,122.28 : x
  2. Step 2: Convert to fraction form
    67,288.11/100,736.57 = 39,122.28/x
  3. Step 3: Cross multiply
    67,288.11x = 100,736.57 × 39,122.28
  4. Step 4: Simplify right side
    67,288.11x = 3,941,044,297.78
  5. Step 5: Solve for x
    x = 3,941,044,297.78/67,288.11
  6. Step 6: Final answer
    x = 58,569.70

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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.