Home / 66,943.16-100,427.04-54,571.60

Finding the Fourth Proportional to 66,943.16, 100,427.04 and 54,571.60

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Solution

The fourth proportional to 66,943.16, 100,427.04 and 54,571.60 is: 81,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.16 : 100,427.04 = 54,571.60 : x
  2. Step 2: Convert to fraction form
    66,943.16/100,427.04 = 54,571.60/x
  3. Step 3: Cross multiply
    66,943.16x = 100,427.04 × 54,571.60
  4. Step 4: Simplify right side
    66,943.16x = 5,480,464,256.06
  5. Step 5: Solve for x
    x = 5,480,464,256.06/66,943.16
  6. Step 6: Final answer
    x = 81,867.43

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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.