Home / 66,221.38-91,382.53-37,540.63

Finding the Fourth Proportional to 66,221.38, 91,382.53 and 37,540.63

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Solution

The fourth proportional to 66,221.38, 91,382.53 and 37,540.63 is: 51,804.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,221.38 : 91,382.53 = 37,540.63 : x
  2. Step 2: Convert to fraction form
    66,221.38/91,382.53 = 37,540.63/x
  3. Step 3: Cross multiply
    66,221.38x = 91,382.53 × 37,540.63
  4. Step 4: Simplify right side
    66,221.38x = 3,430,557,102.58
  5. Step 5: Solve for x
    x = 3,430,557,102.58/66,221.38
  6. Step 6: Final answer
    x = 51,804.38

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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.