Home / 66,219.75-91,383.27-36,411.75

Finding the Fourth Proportional to 66,219.75, 91,383.27 and 36,411.75

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Solution

The fourth proportional to 66,219.75, 91,383.27 and 36,411.75 is: 50,248.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,219.75 : 91,383.27 = 36,411.75 : x
  2. Step 2: Convert to fraction form
    66,219.75/91,383.27 = 36,411.75/x
  3. Step 3: Cross multiply
    66,219.75x = 91,383.27 × 36,411.75
  4. Step 4: Simplify right side
    66,219.75x = 3,327,424,781.42
  5. Step 5: Solve for x
    x = 3,327,424,781.42/66,219.75
  6. Step 6: Final answer
    x = 50,248.22

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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.