Home / 70,263.27-105,400.40-20,344.11

Finding the Fourth Proportional to 70,263.27, 105,400.40 and 20,344.11

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Solution

The fourth proportional to 70,263.27, 105,400.40 and 20,344.11 is: 30,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,263.27 : 105,400.40 = 20,344.11 : x
  2. Step 2: Convert to fraction form
    70,263.27/105,400.40 = 20,344.11/x
  3. Step 3: Cross multiply
    70,263.27x = 105,400.40 × 20,344.11
  4. Step 4: Simplify right side
    70,263.27x = 2,144,277,229.92
  5. Step 5: Solve for x
    x = 2,144,277,229.92/70,263.27
  6. Step 6: Final answer
    x = 30,517.75

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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.