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Finding the Fourth Proportional to 79,097.79, 109,153.49 and 43,287.08

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Solution

The fourth proportional to 79,097.79, 109,153.49 and 43,287.08 is: 59,735.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,097.79 : 109,153.49 = 43,287.08 : x
  2. Step 2: Convert to fraction form
    79,097.79/109,153.49 = 43,287.08/x
  3. Step 3: Cross multiply
    79,097.79x = 109,153.49 × 43,287.08
  4. Step 4: Simplify right side
    79,097.79x = 4,724,935,853.91
  5. Step 5: Solve for x
    x = 4,724,935,853.91/79,097.79
  6. Step 6: Final answer
    x = 59,735.37

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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.