Home / 66,747.45-92,102.37-39,884.28

Finding the Fourth Proportional to 66,747.45, 92,102.37 and 39,884.28

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Solution

The fourth proportional to 66,747.45, 92,102.37 and 39,884.28 is: 55,034.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,747.45 : 92,102.37 = 39,884.28 : x
  2. Step 2: Convert to fraction form
    66,747.45/92,102.37 = 39,884.28/x
  3. Step 3: Cross multiply
    66,747.45x = 92,102.37 × 39,884.28
  4. Step 4: Simplify right side
    66,747.45x = 3,673,436,713.74
  5. Step 5: Solve for x
    x = 3,673,436,713.74/66,747.45
  6. Step 6: Final answer
    x = 55,034.86

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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.