Home / 66,186.50-91,338.25-35,972.42

Finding the Fourth Proportional to 66,186.50, 91,338.25 and 35,972.42

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Solution

The fourth proportional to 66,186.50, 91,338.25 and 35,972.42 is: 49,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.50 : 91,338.25 = 35,972.42 : x
  2. Step 2: Convert to fraction form
    66,186.50/91,338.25 = 35,972.42/x
  3. Step 3: Cross multiply
    66,186.50x = 91,338.25 × 35,972.42
  4. Step 4: Simplify right side
    66,186.50x = 3,285,657,891.07
  5. Step 5: Solve for x
    x = 3,285,657,891.07/66,186.50
  6. Step 6: Final answer
    x = 49,642.42

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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.