Home / 67,515.42-101,273.09-20,768.30

Finding the Fourth Proportional to 67,515.42, 101,273.09 and 20,768.30

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Solution

The fourth proportional to 67,515.42, 101,273.09 and 20,768.30 is: 31,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,515.42 : 101,273.09 = 20,768.30 : x
  2. Step 2: Convert to fraction form
    67,515.42/101,273.09 = 20,768.30/x
  3. Step 3: Cross multiply
    67,515.42x = 101,273.09 × 20,768.30
  4. Step 4: Simplify right side
    67,515.42x = 2,103,269,684.61
  5. Step 5: Solve for x
    x = 2,103,269,684.61/67,515.42
  6. Step 6: Final answer
    x = 31,152.43

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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.