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Finding the Fourth Proportional to 66,562.94, 99,910.01 and 40,318.94

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Solution

The fourth proportional to 66,562.94, 99,910.01 and 40,318.94 is: 60,518.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,562.94 : 99,910.01 = 40,318.94 : x
  2. Step 2: Convert to fraction form
    66,562.94/99,910.01 = 40,318.94/x
  3. Step 3: Cross multiply
    66,562.94x = 99,910.01 × 40,318.94
  4. Step 4: Simplify right side
    66,562.94x = 4,028,265,299.84
  5. Step 5: Solve for x
    x = 4,028,265,299.84/66,562.94
  6. Step 6: Final answer
    x = 60,518.14

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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.