Home / 66,285.78-91,476.31-36,073.05

Finding the Fourth Proportional to 66,285.78, 91,476.31 and 36,073.05

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Solution

The fourth proportional to 66,285.78, 91,476.31 and 36,073.05 is: 49,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.78 : 91,476.31 = 36,073.05 : x
  2. Step 2: Convert to fraction form
    66,285.78/91,476.31 = 36,073.05/x
  3. Step 3: Cross multiply
    66,285.78x = 91,476.31 × 36,073.05
  4. Step 4: Simplify right side
    66,285.78x = 3,299,830,012.15
  5. Step 5: Solve for x
    x = 3,299,830,012.15/66,285.78
  6. Step 6: Final answer
    x = 49,781.87

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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.