Home / 43,700.20-65,545.26-12,112.60

Finding the Fourth Proportional to 43,700.20, 65,545.26 and 12,112.60

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Solution

The fourth proportional to 43,700.20, 65,545.26 and 12,112.60 is: 18,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,700.20 : 65,545.26 = 12,112.60 : x
  2. Step 2: Convert to fraction form
    43,700.20/65,545.26 = 12,112.60/x
  3. Step 3: Cross multiply
    43,700.20x = 65,545.26 × 12,112.60
  4. Step 4: Simplify right side
    43,700.20x = 793,923,516.28
  5. Step 5: Solve for x
    x = 793,923,516.28/43,700.20
  6. Step 6: Final answer
    x = 18,167.50

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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.