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Finding the Fourth Proportional to 69,156.83, 95,477.10 and 65,171.03

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Solution

The fourth proportional to 69,156.83, 95,477.10 and 65,171.03 is: 89,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,156.83 : 95,477.10 = 65,171.03 : x
  2. Step 2: Convert to fraction form
    69,156.83/95,477.10 = 65,171.03/x
  3. Step 3: Cross multiply
    69,156.83x = 95,477.10 × 65,171.03
  4. Step 4: Simplify right side
    69,156.83x = 6,222,340,471.03
  5. Step 5: Solve for x
    x = 6,222,340,471.03/69,156.83
  6. Step 6: Final answer
    x = 89,974.34

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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.