Home / 52,181.40-78,272.10-17,112.60

Finding the Fourth Proportional to 52,181.40, 78,272.10 and 17,112.60

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Solution

The fourth proportional to 52,181.40, 78,272.10 and 17,112.60 is: 25,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,181.40 : 78,272.10 = 17,112.60 : x
  2. Step 2: Convert to fraction form
    52,181.40/78,272.10 = 17,112.60/x
  3. Step 3: Cross multiply
    52,181.40x = 78,272.10 × 17,112.60
  4. Step 4: Simplify right side
    52,181.40x = 1,339,439,138.46
  5. Step 5: Solve for x
    x = 1,339,439,138.46/52,181.40
  6. Step 6: Final answer
    x = 25,668.90

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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.