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Finding the Fourth Proportional to 69,387.08, 104,097.18 and 22,640

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Solution

The fourth proportional to 69,387.08, 104,097.18 and 22,640 is: 33,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,387.08 : 104,097.18 = 22,640 : x
  2. Step 2: Convert to fraction form
    69,387.08/104,097.18 = 22,640/x
  3. Step 3: Cross multiply
    69,387.08x = 104,097.18 × 22,640
  4. Step 4: Simplify right side
    69,387.08x = 2,356,760,155.20
  5. Step 5: Solve for x
    x = 2,356,760,155.20/69,387.08
  6. Step 6: Final answer
    x = 33,965.40

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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.