Home / 79,930.82-119,931.60-41,971.16

Finding the Fourth Proportional to 79,930.82, 119,931.60 and 41,971.16

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Solution

The fourth proportional to 79,930.82, 119,931.60 and 41,971.16 is: 62,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,930.82 : 119,931.60 = 41,971.16 : x
  2. Step 2: Convert to fraction form
    79,930.82/119,931.60 = 41,971.16/x
  3. Step 3: Cross multiply
    79,930.82x = 119,931.60 × 41,971.16
  4. Step 4: Simplify right side
    79,930.82x = 5,033,668,372.66
  5. Step 5: Solve for x
    x = 5,033,668,372.66/79,930.82
  6. Step 6: Final answer
    x = 62,975.31

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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.