Home / 66,377.09-91,590.10-38,077.31

Finding the Fourth Proportional to 66,377.09, 91,590.10 and 38,077.31

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Solution

The fourth proportional to 66,377.09, 91,590.10 and 38,077.31 is: 52,540.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,377.09 : 91,590.10 = 38,077.31 : x
  2. Step 2: Convert to fraction form
    66,377.09/91,590.10 = 38,077.31/x
  3. Step 3: Cross multiply
    66,377.09x = 91,590.10 × 38,077.31
  4. Step 4: Simplify right side
    66,377.09x = 3,487,504,764.41
  5. Step 5: Solve for x
    x = 3,487,504,764.41/66,377.09
  6. Step 6: Final answer
    x = 52,540.79

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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.