Home / 43,459.05-65,217.79-15,378.99

Finding the Fourth Proportional to 43,459.05, 65,217.79 and 15,378.99

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Solution

The fourth proportional to 43,459.05, 65,217.79 and 15,378.99 is: 23,078.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,459.05 : 65,217.79 = 15,378.99 : x
  2. Step 2: Convert to fraction form
    43,459.05/65,217.79 = 15,378.99/x
  3. Step 3: Cross multiply
    43,459.05x = 65,217.79 × 15,378.99
  4. Step 4: Simplify right side
    43,459.05x = 1,002,983,740.23
  5. Step 5: Solve for x
    x = 1,002,983,740.23/43,459.05
  6. Step 6: Final answer
    x = 23,078.82

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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.