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Finding the Fourth Proportional to 69,360.38, 104,039.91 and 21,975.34

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Solution

The fourth proportional to 69,360.38, 104,039.91 and 21,975.34 is: 32,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,360.38 : 104,039.91 = 21,975.34 : x
  2. Step 2: Convert to fraction form
    69,360.38/104,039.91 = 21,975.34/x
  3. Step 3: Cross multiply
    69,360.38x = 104,039.91 × 21,975.34
  4. Step 4: Simplify right side
    69,360.38x = 2,286,312,395.82
  5. Step 5: Solve for x
    x = 2,286,312,395.82/69,360.38
  6. Step 6: Final answer
    x = 32,962.80

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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.