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Finding the Fourth Proportional to 91,155.88, 125,795.40 and 50,871.34

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Solution

The fourth proportional to 91,155.88, 125,795.40 and 50,871.34 is: 70,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,155.88 : 125,795.40 = 50,871.34 : x
  2. Step 2: Convert to fraction form
    91,155.88/125,795.40 = 50,871.34/x
  3. Step 3: Cross multiply
    91,155.88x = 125,795.40 × 50,871.34
  4. Step 4: Simplify right side
    91,155.88x = 6,399,380,563.84
  5. Step 5: Solve for x
    x = 6,399,380,563.84/91,155.88
  6. Step 6: Final answer
    x = 70,202.61

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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.