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Finding the Fourth Proportional to 60,022, 90,034.22 and 18,469

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Solution

The fourth proportional to 60,022, 90,034.22 and 18,469 is: 27,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,022 : 90,034.22 = 18,469 : x
  2. Step 2: Convert to fraction form
    60,022/90,034.22 = 18,469/x
  3. Step 3: Cross multiply
    60,022x = 90,034.22 × 18,469
  4. Step 4: Simplify right side
    60,022x = 1,662,842,009.18
  5. Step 5: Solve for x
    x = 1,662,842,009.18/60,022
  6. Step 6: Final answer
    x = 27,703.88

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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.