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Finding the Fourth Proportional to 90,659.94, 125,104.92 and 50,372.96

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Solution

The fourth proportional to 90,659.94, 125,104.92 and 50,372.96 is: 69,511.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,659.94 : 125,104.92 = 50,372.96 : x
  2. Step 2: Convert to fraction form
    90,659.94/125,104.92 = 50,372.96/x
  3. Step 3: Cross multiply
    90,659.94x = 125,104.92 × 50,372.96
  4. Step 4: Simplify right side
    90,659.94x = 6,301,905,130.96
  5. Step 5: Solve for x
    x = 6,301,905,130.96/90,659.94
  6. Step 6: Final answer
    x = 69,511.46

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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.