Home / 89,245.33-123,286.67-71,316.79

Finding the Fourth Proportional to 89,245.33, 123,286.67 and 71,316.79

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Solution

The fourth proportional to 89,245.33, 123,286.67 and 71,316.79 is: 98,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,245.33 : 123,286.67 = 71,316.79 : x
  2. Step 2: Convert to fraction form
    89,245.33/123,286.67 = 71,316.79/x
  3. Step 3: Cross multiply
    89,245.33x = 123,286.67 × 71,316.79
  4. Step 4: Simplify right side
    89,245.33x = 8,792,409,554.19
  5. Step 5: Solve for x
    x = 8,792,409,554.19/89,245.33
  6. Step 6: Final answer
    x = 98,519.55

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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.