Home / 66,152.16-99,241.89-21,781.56

Finding the Fourth Proportional to 66,152.16, 99,241.89 and 21,781.56

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Solution

The fourth proportional to 66,152.16, 99,241.89 and 21,781.56 is: 32,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,152.16 : 99,241.89 = 21,781.56 : x
  2. Step 2: Convert to fraction form
    66,152.16/99,241.89 = 21,781.56/x
  3. Step 3: Cross multiply
    66,152.16x = 99,241.89 × 21,781.56
  4. Step 4: Simplify right side
    66,152.16x = 2,161,643,181.55
  5. Step 5: Solve for x
    x = 2,161,643,181.55/66,152.16
  6. Step 6: Final answer
    x = 32,676.83

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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.