Home / 67,821.68-93,572.61-39,137.57

Finding the Fourth Proportional to 67,821.68, 93,572.61 and 39,137.57

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Solution

The fourth proportional to 67,821.68, 93,572.61 and 39,137.57 is: 53,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,821.68 : 93,572.61 = 39,137.57 : x
  2. Step 2: Convert to fraction form
    67,821.68/93,572.61 = 39,137.57/x
  3. Step 3: Cross multiply
    67,821.68x = 93,572.61 × 39,137.57
  4. Step 4: Simplify right side
    67,821.68x = 3,662,204,106.09
  5. Step 5: Solve for x
    x = 3,662,204,106.09/67,821.68
  6. Step 6: Final answer
    x = 53,997.55

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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.