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Finding the Fourth Proportional to 85,226.62, 127,518.52 and 50,905.16

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Solution

The fourth proportional to 85,226.62, 127,518.52 and 50,905.16 is: 76,165.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,226.62 : 127,518.52 = 50,905.16 : x
  2. Step 2: Convert to fraction form
    85,226.62/127,518.52 = 50,905.16/x
  3. Step 3: Cross multiply
    85,226.62x = 127,518.52 × 50,905.16
  4. Step 4: Simplify right side
    85,226.62x = 6,491,350,663.56
  5. Step 5: Solve for x
    x = 6,491,350,663.56/85,226.62
  6. Step 6: Final answer
    x = 76,165.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.