Home / 66,531.18-91,845.99-42,356.18

Finding the Fourth Proportional to 66,531.18, 91,845.99 and 42,356.18

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Solution

The fourth proportional to 66,531.18, 91,845.99 and 42,356.18 is: 58,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531.18 : 91,845.99 = 42,356.18 : x
  2. Step 2: Convert to fraction form
    66,531.18/91,845.99 = 42,356.18/x
  3. Step 3: Cross multiply
    66,531.18x = 91,845.99 × 42,356.18
  4. Step 4: Simplify right side
    66,531.18x = 3,890,245,514.33
  5. Step 5: Solve for x
    x = 3,890,245,514.33/66,531.18
  6. Step 6: Final answer
    x = 58,472.51

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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.