Home / 78,369.12-117,568.44-35,677.85

Finding the Fourth Proportional to 78,369.12, 117,568.44 and 35,677.85

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Solution

The fourth proportional to 78,369.12, 117,568.44 and 35,677.85 is: 53,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,369.12 : 117,568.44 = 35,677.85 : x
  2. Step 2: Convert to fraction form
    78,369.12/117,568.44 = 35,677.85/x
  3. Step 3: Cross multiply
    78,369.12x = 117,568.44 × 35,677.85
  4. Step 4: Simplify right side
    78,369.12x = 4,194,588,579.21
  5. Step 5: Solve for x
    x = 4,194,588,579.21/78,369.12
  6. Step 6: Final answer
    x = 53,523.49

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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.