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Finding the Fourth Proportional to 70,250.09, 105,388.13 and 22,230.78

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Solution

The fourth proportional to 70,250.09, 105,388.13 and 22,230.78 is: 33,350.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,250.09 : 105,388.13 = 22,230.78 : x
  2. Step 2: Convert to fraction form
    70,250.09/105,388.13 = 22,230.78/x
  3. Step 3: Cross multiply
    70,250.09x = 105,388.13 × 22,230.78
  4. Step 4: Simplify right side
    70,250.09x = 2,342,860,668.46
  5. Step 5: Solve for x
    x = 2,342,860,668.46/70,250.09
  6. Step 6: Final answer
    x = 33,350.29

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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.