Home / 79,930.90-119,896.32-23,770.78

Finding the Fourth Proportional to 79,930.90, 119,896.32 and 23,770.78

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Solution

The fourth proportional to 79,930.90, 119,896.32 and 23,770.78 is: 35,656.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,930.90 : 119,896.32 = 23,770.78 : x
  2. Step 2: Convert to fraction form
    79,930.90/119,896.32 = 23,770.78/x
  3. Step 3: Cross multiply
    79,930.90x = 119,896.32 × 23,770.78
  4. Step 4: Simplify right side
    79,930.90x = 2,850,029,045.53
  5. Step 5: Solve for x
    x = 2,850,029,045.53/79,930.90
  6. Step 6: Final answer
    x = 35,656.16

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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.