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Finding the Fourth Proportional to 43,434, 65,040.73 and 36,395.50

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Solution

The fourth proportional to 43,434, 65,040.73 and 36,395.50 is: 54,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,434 : 65,040.73 = 36,395.50 : x
  2. Step 2: Convert to fraction form
    43,434/65,040.73 = 36,395.50/x
  3. Step 3: Cross multiply
    43,434x = 65,040.73 × 36,395.50
  4. Step 4: Simplify right side
    43,434x = 2,367,189,888.72
  5. Step 5: Solve for x
    x = 2,367,189,888.72/43,434
  6. Step 6: Final answer
    x = 54,500.85

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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.