Home / 78,524.25-117,824.18-39,084.81

Finding the Fourth Proportional to 78,524.25, 117,824.18 and 39,084.81

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Solution

The fourth proportional to 78,524.25, 117,824.18 and 39,084.81 is: 58,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,524.25 : 117,824.18 = 39,084.81 : x
  2. Step 2: Convert to fraction form
    78,524.25/117,824.18 = 39,084.81/x
  3. Step 3: Cross multiply
    78,524.25x = 117,824.18 × 39,084.81
  4. Step 4: Simplify right side
    78,524.25x = 4,605,135,493.28
  5. Step 5: Solve for x
    x = 4,605,135,493.28/78,524.25
  6. Step 6: Final answer
    x = 58,646.03

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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.