Home / 70,732.27-106,113.30-20,808.19

Finding the Fourth Proportional to 70,732.27, 106,113.30 and 20,808.19

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Solution

The fourth proportional to 70,732.27, 106,113.30 and 20,808.19 is: 31,216.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,732.27 : 106,113.30 = 20,808.19 : x
  2. Step 2: Convert to fraction form
    70,732.27/106,113.30 = 20,808.19/x
  3. Step 3: Cross multiply
    70,732.27x = 106,113.30 × 20,808.19
  4. Step 4: Simplify right side
    70,732.27x = 2,208,025,707.93
  5. Step 5: Solve for x
    x = 2,208,025,707.93/70,732.27
  6. Step 6: Final answer
    x = 31,216.67

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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.