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Finding the Fourth Proportional to 79,097.10, 109,154 and 43,287.14

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Solution

The fourth proportional to 79,097.10, 109,154 and 43,287.14 is: 59,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,097.10 : 109,154 = 43,287.14 : x
  2. Step 2: Convert to fraction form
    79,097.10/109,154 = 43,287.14/x
  3. Step 3: Cross multiply
    79,097.10x = 109,154 × 43,287.14
  4. Step 4: Simplify right side
    79,097.10x = 4,724,964,479.56
  5. Step 5: Solve for x
    x = 4,724,964,479.56/79,097.10
  6. Step 6: Final answer
    x = 59,736.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.