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Finding the Fourth Proportional to 68,160.65, 102,241.62 and 42,522.77

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Solution

The fourth proportional to 68,160.65, 102,241.62 and 42,522.77 is: 63,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,160.65 : 102,241.62 = 42,522.77 : x
  2. Step 2: Convert to fraction form
    68,160.65/102,241.62 = 42,522.77/x
  3. Step 3: Cross multiply
    68,160.65x = 102,241.62 × 42,522.77
  4. Step 4: Simplify right side
    68,160.65x = 4,347,596,167.87
  5. Step 5: Solve for x
    x = 4,347,596,167.87/68,160.65
  6. Step 6: Final answer
    x = 63,784.55

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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.