Home / 86,486.31-119,354.49-48,759.75

Finding the Fourth Proportional to 86,486.31, 119,354.49 and 48,759.75

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Solution

The fourth proportional to 86,486.31, 119,354.49 and 48,759.75 is: 67,290.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,486.31 : 119,354.49 = 48,759.75 : x
  2. Step 2: Convert to fraction form
    86,486.31/119,354.49 = 48,759.75/x
  3. Step 3: Cross multiply
    86,486.31x = 119,354.49 × 48,759.75
  4. Step 4: Simplify right side
    86,486.31x = 5,819,695,093.78
  5. Step 5: Solve for x
    x = 5,819,695,093.78/86,486.31
  6. Step 6: Final answer
    x = 67,290.36

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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.