Home / 67,945.41-93,770.69-39,660.21

Finding the Fourth Proportional to 67,945.41, 93,770.69 and 39,660.21

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Solution

The fourth proportional to 67,945.41, 93,770.69 and 39,660.21 is: 54,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,945.41 : 93,770.69 = 39,660.21 : x
  2. Step 2: Convert to fraction form
    67,945.41/93,770.69 = 39,660.21/x
  3. Step 3: Cross multiply
    67,945.41x = 93,770.69 × 39,660.21
  4. Step 4: Simplify right side
    67,945.41x = 3,718,965,058.94
  5. Step 5: Solve for x
    x = 3,718,965,058.94/67,945.41
  6. Step 6: Final answer
    x = 54,734.60

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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.