Home / 68,027.09-102,040.85-20,642.57

Finding the Fourth Proportional to 68,027.09, 102,040.85 and 20,642.57

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Solution

The fourth proportional to 68,027.09, 102,040.85 and 20,642.57 is: 30,963.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,027.09 : 102,040.85 = 20,642.57 : x
  2. Step 2: Convert to fraction form
    68,027.09/102,040.85 = 20,642.57/x
  3. Step 3: Cross multiply
    68,027.09x = 102,040.85 × 20,642.57
  4. Step 4: Simplify right side
    68,027.09x = 2,106,385,540.87
  5. Step 5: Solve for x
    x = 2,106,385,540.87/68,027.09
  6. Step 6: Final answer
    x = 30,963.92

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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.