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Finding the Fourth Proportional to 89,808, 134,717.40 and 27,479.04

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Solution

The fourth proportional to 89,808, 134,717.40 and 27,479.04 is: 41,220.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,808 : 134,717.40 = 27,479.04 : x
  2. Step 2: Convert to fraction form
    89,808/134,717.40 = 27,479.04/x
  3. Step 3: Cross multiply
    89,808x = 134,717.40 × 27,479.04
  4. Step 4: Simplify right side
    89,808x = 3,701,904,823.30
  5. Step 5: Solve for x
    x = 3,701,904,823.30/89,808
  6. Step 6: Final answer
    x = 41,220.21

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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.