Home / 67,020.12-100,530.84-27,561.78

Finding the Fourth Proportional to 67,020.12, 100,530.84 and 27,561.78

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Solution

The fourth proportional to 67,020.12, 100,530.84 and 27,561.78 is: 41,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,020.12 : 100,530.84 = 27,561.78 : x
  2. Step 2: Convert to fraction form
    67,020.12/100,530.84 = 27,561.78/x
  3. Step 3: Cross multiply
    67,020.12x = 100,530.84 × 27,561.78
  4. Step 4: Simplify right side
    67,020.12x = 2,770,808,895.30
  5. Step 5: Solve for x
    x = 2,770,808,895.30/67,020.12
  6. Step 6: Final answer
    x = 41,342.94

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1.5x scale

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.