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Finding the Fourth Proportional to 91,282.92, 125,969.34 and 51,000.60

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Solution

The fourth proportional to 91,282.92, 125,969.34 and 51,000.60 is: 70,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,282.92 : 125,969.34 = 51,000.60 : x
  2. Step 2: Convert to fraction form
    91,282.92/125,969.34 = 51,000.60/x
  3. Step 3: Cross multiply
    91,282.92x = 125,969.34 × 51,000.60
  4. Step 4: Simplify right side
    91,282.92x = 6,424,511,921.60
  5. Step 5: Solve for x
    x = 6,424,511,921.60/91,282.92
  6. Step 6: Final answer
    x = 70,380.22

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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.