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Finding the Fourth Proportional to 89,138.01, 133,706.97 and 21,669.69

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Solution

The fourth proportional to 89,138.01, 133,706.97 and 21,669.69 is: 32,504.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,138.01 : 133,706.97 = 21,669.69 : x
  2. Step 2: Convert to fraction form
    89,138.01/133,706.97 = 21,669.69/x
  3. Step 3: Cross multiply
    89,138.01x = 133,706.97 × 21,669.69
  4. Step 4: Simplify right side
    89,138.01x = 2,897,388,590.74
  5. Step 5: Solve for x
    x = 2,897,388,590.74/89,138.01
  6. Step 6: Final answer
    x = 32,504.52

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1.5x scale

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.