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Finding the Fourth Proportional to 73,215.32, 109,697.67 and 39,958.74

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Solution

The fourth proportional to 73,215.32, 109,697.67 and 39,958.74 is: 59,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,215.32 : 109,697.67 = 39,958.74 : x
  2. Step 2: Convert to fraction form
    73,215.32/109,697.67 = 39,958.74/x
  3. Step 3: Cross multiply
    73,215.32x = 109,697.67 × 39,958.74
  4. Step 4: Simplify right side
    73,215.32x = 4,383,380,674.14
  5. Step 5: Solve for x
    x = 4,383,380,674.14/73,215.32
  6. Step 6: Final answer
    x = 59,869.72

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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.