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Finding the Fourth Proportional to 162,040.75, 243,060.40 and 43,723.87

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Solution

The fourth proportional to 162,040.75, 243,060.40 and 43,723.87 is: 65,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,040.75 : 243,060.40 = 43,723.87 : x
  2. Step 2: Convert to fraction form
    162,040.75/243,060.40 = 43,723.87/x
  3. Step 3: Cross multiply
    162,040.75x = 243,060.40 × 43,723.87
  4. Step 4: Simplify right side
    162,040.75x = 10,627,541,331.75
  5. Step 5: Solve for x
    x = 10,627,541,331.75/162,040.75
  6. Step 6: Final answer
    x = 65,585.61

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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.