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Finding the Fourth Proportional to 65,172.76, 97,764.84 and 18,425.65

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Solution

The fourth proportional to 65,172.76, 97,764.84 and 18,425.65 is: 27,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,172.76 : 97,764.84 = 18,425.65 : x
  2. Step 2: Convert to fraction form
    65,172.76/97,764.84 = 18,425.65/x
  3. Step 3: Cross multiply
    65,172.76x = 97,764.84 × 18,425.65
  4. Step 4: Simplify right side
    65,172.76x = 1,801,380,724.15
  5. Step 5: Solve for x
    x = 1,801,380,724.15/65,172.76
  6. Step 6: Final answer
    x = 27,640.09

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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.