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Finding the Fourth Proportional to 66,289.01, 91,480.73 and 36,076.28

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Solution

The fourth proportional to 66,289.01, 91,480.73 and 36,076.28 is: 49,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,289.01 : 91,480.73 = 36,076.28 : x
  2. Step 2: Convert to fraction form
    66,289.01/91,480.73 = 36,076.28/x
  3. Step 3: Cross multiply
    66,289.01x = 91,480.73 × 36,076.28
  4. Step 4: Simplify right side
    66,289.01x = 3,300,283,792.30
  5. Step 5: Solve for x
    x = 3,300,283,792.30/66,289.01
  6. Step 6: Final answer
    x = 49,786.29

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1.5x scale

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.