Home / 66,132.78-91,201.07-51,001.47

Finding the Fourth Proportional to 66,132.78, 91,201.07 and 51,001.47

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Solution

The fourth proportional to 66,132.78, 91,201.07 and 51,001.47 is: 70,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,132.78 : 91,201.07 = 51,001.47 : x
  2. Step 2: Convert to fraction form
    66,132.78/91,201.07 = 51,001.47/x
  3. Step 3: Cross multiply
    66,132.78x = 91,201.07 × 51,001.47
  4. Step 4: Simplify right side
    66,132.78x = 4,651,388,913.83
  5. Step 5: Solve for x
    x = 4,651,388,913.83/66,132.78
  6. Step 6: Final answer
    x = 70,334.09

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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.