Home / 66,418.38-91,651.50-37,736.28

Finding the Fourth Proportional to 66,418.38, 91,651.50 and 37,736.28

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Solution

The fourth proportional to 66,418.38, 91,651.50 and 37,736.28 is: 52,072.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,418.38 : 91,651.50 = 37,736.28 : x
  2. Step 2: Convert to fraction form
    66,418.38/91,651.50 = 37,736.28/x
  3. Step 3: Cross multiply
    66,418.38x = 91,651.50 × 37,736.28
  4. Step 4: Simplify right side
    66,418.38x = 3,458,586,666.42
  5. Step 5: Solve for x
    x = 3,458,586,666.42/66,418.38
  6. Step 6: Final answer
    x = 52,072.73

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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.