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Finding the Fourth Proportional to 91,838.88, 126,735.84 and 51,552.72

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Solution

The fourth proportional to 91,838.88, 126,735.84 and 51,552.72 is: 71,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,838.88 : 126,735.84 = 51,552.72 : x
  2. Step 2: Convert to fraction form
    91,838.88/126,735.84 = 51,552.72/x
  3. Step 3: Cross multiply
    91,838.88x = 126,735.84 × 51,552.72
  4. Step 4: Simplify right side
    91,838.88x = 6,533,577,273.48
  5. Step 5: Solve for x
    x = 6,533,577,273.48/91,838.88
  6. Step 6: Final answer
    x = 71,141.74

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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.