Home / 51,920.78-71,650.95-29,260.12

Finding the Fourth Proportional to 51,920.78, 71,650.95 and 29,260.12

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Solution

The fourth proportional to 51,920.78, 71,650.95 and 29,260.12 is: 40,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,920.78 : 71,650.95 = 29,260.12 : x
  2. Step 2: Convert to fraction form
    51,920.78/71,650.95 = 29,260.12/x
  3. Step 3: Cross multiply
    51,920.78x = 71,650.95 × 29,260.12
  4. Step 4: Simplify right side
    51,920.78x = 2,096,515,215.99
  5. Step 5: Solve for x
    x = 2,096,515,215.99/51,920.78
  6. Step 6: Final answer
    x = 40,379.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.