Home / 82,806.24-124,211.40-30,215.72

Finding the Fourth Proportional to 82,806.24, 124,211.40 and 30,215.72

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Solution

The fourth proportional to 82,806.24, 124,211.40 and 30,215.72 is: 45,324.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,806.24 : 124,211.40 = 30,215.72 : x
  2. Step 2: Convert to fraction form
    82,806.24/124,211.40 = 30,215.72/x
  3. Step 3: Cross multiply
    82,806.24x = 124,211.40 × 30,215.72
  4. Step 4: Simplify right side
    82,806.24x = 3,753,136,883.21
  5. Step 5: Solve for x
    x = 3,753,136,883.21/82,806.24
  6. Step 6: Final answer
    x = 45,324.32

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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.