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Finding the Fourth Proportional to 43,999.73, 65,999.52 and 12,409.73

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Solution

The fourth proportional to 43,999.73, 65,999.52 and 12,409.73 is: 18,614.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.73 : 65,999.52 = 12,409.73 : x
  2. Step 2: Convert to fraction form
    43,999.73/65,999.52 = 12,409.73/x
  3. Step 3: Cross multiply
    43,999.73x = 65,999.52 × 12,409.73
  4. Step 4: Simplify right side
    43,999.73x = 819,036,223.33
  5. Step 5: Solve for x
    x = 819,036,223.33/43,999.73
  6. Step 6: Final answer
    x = 18,614.57

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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.