Home / 43,665.40-65,498.10-12,496.60

Finding the Fourth Proportional to 43,665.40, 65,498.10 and 12,496.60

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Solution

The fourth proportional to 43,665.40, 65,498.10 and 12,496.60 is: 18,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,665.40 : 65,498.10 = 12,496.60 : x
  2. Step 2: Convert to fraction form
    43,665.40/65,498.10 = 12,496.60/x
  3. Step 3: Cross multiply
    43,665.40x = 65,498.10 × 12,496.60
  4. Step 4: Simplify right side
    43,665.40x = 818,503,556.46
  5. Step 5: Solve for x
    x = 818,503,556.46/43,665.40
  6. Step 6: Final answer
    x = 18,744.90

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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.