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Finding the Fourth Proportional to 68,403.38, 102,769.47 and 64,626.98

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Solution

The fourth proportional to 68,403.38, 102,769.47 and 64,626.98 is: 97,095.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,403.38 : 102,769.47 = 64,626.98 : x
  2. Step 2: Convert to fraction form
    68,403.38/102,769.47 = 64,626.98/x
  3. Step 3: Cross multiply
    68,403.38x = 102,769.47 × 64,626.98
  4. Step 4: Simplify right side
    68,403.38x = 6,641,680,482.30
  5. Step 5: Solve for x
    x = 6,641,680,482.30/68,403.38
  6. Step 6: Final answer
    x = 97,095.79

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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.