Home / 86,131.17-118,860.48-48,405.42

Finding the Fourth Proportional to 86,131.17, 118,860.48 and 48,405.42

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Solution

The fourth proportional to 86,131.17, 118,860.48 and 48,405.42 is: 66,799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,131.17 : 118,860.48 = 48,405.42 : x
  2. Step 2: Convert to fraction form
    86,131.17/118,860.48 = 48,405.42/x
  3. Step 3: Cross multiply
    86,131.17x = 118,860.48 × 48,405.42
  4. Step 4: Simplify right side
    86,131.17x = 5,753,491,455.80
  5. Step 5: Solve for x
    x = 5,753,491,455.80/86,131.17
  6. Step 6: Final answer
    x = 66,799.18

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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.