Home / 78,084.06-117,116.37-25,489.14

Finding the Fourth Proportional to 78,084.06, 117,116.37 and 25,489.14

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Solution

The fourth proportional to 78,084.06, 117,116.37 and 25,489.14 is: 38,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,084.06 : 117,116.37 = 25,489.14 : x
  2. Step 2: Convert to fraction form
    78,084.06/117,116.37 = 25,489.14/x
  3. Step 3: Cross multiply
    78,084.06x = 117,116.37 × 25,489.14
  4. Step 4: Simplify right side
    78,084.06x = 2,985,195,551.22
  5. Step 5: Solve for x
    x = 2,985,195,551.22/78,084.06
  6. Step 6: Final answer
    x = 38,230.54

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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.