Home / 79,930.44-119,974.68-42,490.62

Finding the Fourth Proportional to 79,930.44, 119,974.68 and 42,490.62

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Solution

The fourth proportional to 79,930.44, 119,974.68 and 42,490.62 is: 63,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,930.44 : 119,974.68 = 42,490.62 : x
  2. Step 2: Convert to fraction form
    79,930.44/119,974.68 = 42,490.62/x
  3. Step 3: Cross multiply
    79,930.44x = 119,974.68 × 42,490.62
  4. Step 4: Simplify right side
    79,930.44x = 5,097,798,537.50
  5. Step 5: Solve for x
    x = 5,097,798,537.50/79,930.44
  6. Step 6: Final answer
    x = 63,777.94

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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.