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Finding the Fourth Proportional to 91,150.88, 125,791.44 and 53,422.88

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Solution

The fourth proportional to 91,150.88, 125,791.44 and 53,422.88 is: 73,725.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,150.88 : 125,791.44 = 53,422.88 : x
  2. Step 2: Convert to fraction form
    91,150.88/125,791.44 = 53,422.88/x
  3. Step 3: Cross multiply
    91,150.88x = 125,791.44 × 53,422.88
  4. Step 4: Simplify right side
    91,150.88x = 6,720,141,004.15
  5. Step 5: Solve for x
    x = 6,720,141,004.15/91,150.88
  6. Step 6: Final answer
    x = 73,725.46

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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.