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Finding the Fourth Proportional to 66,652.11, 100,018.49 and 29,214.32

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Solution

The fourth proportional to 66,652.11, 100,018.49 and 29,214.32 is: 43,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,652.11 : 100,018.49 = 29,214.32 : x
  2. Step 2: Convert to fraction form
    66,652.11/100,018.49 = 29,214.32/x
  3. Step 3: Cross multiply
    66,652.11x = 100,018.49 × 29,214.32
  4. Step 4: Simplify right side
    66,652.11x = 2,921,971,526.61
  5. Step 5: Solve for x
    x = 2,921,971,526.61/66,652.11
  6. Step 6: Final answer
    x = 43,839.15

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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.