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Finding the Fourth Proportional to 85,626.04, 128,450 and 33,050.56

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Solution

The fourth proportional to 85,626.04, 128,450 and 33,050.56 is: 49,580.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,626.04 : 128,450 = 33,050.56 : x
  2. Step 2: Convert to fraction form
    85,626.04/128,450 = 33,050.56/x
  3. Step 3: Cross multiply
    85,626.04x = 128,450 × 33,050.56
  4. Step 4: Simplify right side
    85,626.04x = 4,245,344,432.00
  5. Step 5: Solve for x
    x = 4,245,344,432.00/85,626.04
  6. Step 6: Final answer
    x = 49,580.06

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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.