Home / 68,982.81-95,197.11-42,121.59

Finding the Fourth Proportional to 68,982.81, 95,197.11 and 42,121.59

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Solution

The fourth proportional to 68,982.81, 95,197.11 and 42,121.59 is: 58,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,982.81 : 95,197.11 = 42,121.59 : x
  2. Step 2: Convert to fraction form
    68,982.81/95,197.11 = 42,121.59/x
  3. Step 3: Cross multiply
    68,982.81x = 95,197.11 × 42,121.59
  4. Step 4: Simplify right side
    68,982.81x = 4,009,853,636.60
  5. Step 5: Solve for x
    x = 4,009,853,636.60/68,982.81
  6. Step 6: Final answer
    x = 58,128.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.