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Finding the Fourth Proportional to 66,102.35, 99,153.06 and 26,631.56

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Solution

The fourth proportional to 66,102.35, 99,153.06 and 26,631.56 is: 39,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,102.35 : 99,153.06 = 26,631.56 : x
  2. Step 2: Convert to fraction form
    66,102.35/99,153.06 = 26,631.56/x
  3. Step 3: Cross multiply
    66,102.35x = 99,153.06 × 26,631.56
  4. Step 4: Simplify right side
    66,102.35x = 2,640,600,170.81
  5. Step 5: Solve for x
    x = 2,640,600,170.81/66,102.35
  6. Step 6: Final answer
    x = 39,947.15

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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.