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Finding the Fourth Proportional to 66,575.07, 91,869.84 and 36,354.38

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Solution

The fourth proportional to 66,575.07, 91,869.84 and 36,354.38 is: 50,166.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,575.07 : 91,869.84 = 36,354.38 : x
  2. Step 2: Convert to fraction form
    66,575.07/91,869.84 = 36,354.38/x
  3. Step 3: Cross multiply
    66,575.07x = 91,869.84 × 36,354.38
  4. Step 4: Simplify right side
    66,575.07x = 3,339,871,073.90
  5. Step 5: Solve for x
    x = 3,339,871,073.90/66,575.07
  6. Step 6: Final answer
    x = 50,166.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.