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Finding the Fourth Proportional to 52,856.79, 79,296.84 and 15,419.79

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Solution

The fourth proportional to 52,856.79, 79,296.84 and 15,419.79 is: 23,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,856.79 : 79,296.84 = 15,419.79 : x
  2. Step 2: Convert to fraction form
    52,856.79/79,296.84 = 15,419.79/x
  3. Step 3: Cross multiply
    52,856.79x = 79,296.84 × 15,419.79
  4. Step 4: Simplify right side
    52,856.79x = 1,222,740,620.46
  5. Step 5: Solve for x
    x = 1,222,740,620.46/52,856.79
  6. Step 6: Final answer
    x = 23,133.09

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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.