Home / 71,772.22-107,676.12-34,360.72

Finding the Fourth Proportional to 71,772.22, 107,676.12 and 34,360.72

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Solution

The fourth proportional to 71,772.22, 107,676.12 and 34,360.72 is: 51,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,772.22 : 107,676.12 = 34,360.72 : x
  2. Step 2: Convert to fraction form
    71,772.22/107,676.12 = 34,360.72/x
  3. Step 3: Cross multiply
    71,772.22x = 107,676.12 × 34,360.72
  4. Step 4: Simplify right side
    71,772.22x = 3,699,829,010.01
  5. Step 5: Solve for x
    x = 3,699,829,010.01/71,772.22
  6. Step 6: Final answer
    x = 51,549.60

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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.