Home / 76,619.25-115,035.48-39,205.14

Finding the Fourth Proportional to 76,619.25, 115,035.48 and 39,205.14

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Solution

The fourth proportional to 76,619.25, 115,035.48 and 39,205.14 is: 58,862.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,619.25 : 115,035.48 = 39,205.14 : x
  2. Step 2: Convert to fraction form
    76,619.25/115,035.48 = 39,205.14/x
  3. Step 3: Cross multiply
    76,619.25x = 115,035.48 × 39,205.14
  4. Step 4: Simplify right side
    76,619.25x = 4,509,982,098.37
  5. Step 5: Solve for x
    x = 4,509,982,098.37/76,619.25
  6. Step 6: Final answer
    x = 58,862.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.