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Finding the Fourth Proportional to 68,376.60, 102,564.90 and 63,461.40

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Solution

The fourth proportional to 68,376.60, 102,564.90 and 63,461.40 is: 95,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,376.60 : 102,564.90 = 63,461.40 : x
  2. Step 2: Convert to fraction form
    68,376.60/102,564.90 = 63,461.40/x
  3. Step 3: Cross multiply
    68,376.60x = 102,564.90 × 63,461.40
  4. Step 4: Simplify right side
    68,376.60x = 6,508,912,144.86
  5. Step 5: Solve for x
    x = 6,508,912,144.86/68,376.60
  6. Step 6: Final answer
    x = 95,192.10

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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.