Home / 70,217.11-105,400.63-30,255.82

Finding the Fourth Proportional to 70,217.11, 105,400.63 and 30,255.82

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Solution

The fourth proportional to 70,217.11, 105,400.63 and 30,255.82 is: 45,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,217.11 : 105,400.63 = 30,255.82 : x
  2. Step 2: Convert to fraction form
    70,217.11/105,400.63 = 30,255.82/x
  3. Step 3: Cross multiply
    70,217.11x = 105,400.63 × 30,255.82
  4. Step 4: Simplify right side
    70,217.11x = 3,188,982,244.37
  5. Step 5: Solve for x
    x = 3,188,982,244.37/70,217.11
  6. Step 6: Final answer
    x = 45,416.03

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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.