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Finding the Fourth Proportional to 68,564.67, 102,787.53 and 30,585.39

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Solution

The fourth proportional to 68,564.67, 102,787.53 and 30,585.39 is: 45,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,564.67 : 102,787.53 = 30,585.39 : x
  2. Step 2: Convert to fraction form
    68,564.67/102,787.53 = 30,585.39/x
  3. Step 3: Cross multiply
    68,564.67x = 102,787.53 × 30,585.39
  4. Step 4: Simplify right side
    68,564.67x = 3,143,796,692.19
  5. Step 5: Solve for x
    x = 3,143,796,692.19/68,564.67
  6. Step 6: Final answer
    x = 45,851.55

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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.