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Finding the Fourth Proportional to 80,102.98, 119,935.54 and 57,636.11

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Solution

The fourth proportional to 80,102.98, 119,935.54 and 57,636.11 is: 86,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,102.98 : 119,935.54 = 57,636.11 : x
  2. Step 2: Convert to fraction form
    80,102.98/119,935.54 = 57,636.11/x
  3. Step 3: Cross multiply
    80,102.98x = 119,935.54 × 57,636.11
  4. Step 4: Simplify right side
    80,102.98x = 6,912,617,349.39
  5. Step 5: Solve for x
    x = 6,912,617,349.39/80,102.98
  6. Step 6: Final answer
    x = 86,296.64

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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.