Home / 71,638.12-107,347.74-30,062.44

Finding the Fourth Proportional to 71,638.12, 107,347.74 and 30,062.44

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Solution

The fourth proportional to 71,638.12, 107,347.74 and 30,062.44 is: 45,047.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,638.12 : 107,347.74 = 30,062.44 : x
  2. Step 2: Convert to fraction form
    71,638.12/107,347.74 = 30,062.44/x
  3. Step 3: Cross multiply
    71,638.12x = 107,347.74 × 30,062.44
  4. Step 4: Simplify right side
    71,638.12x = 3,227,134,992.89
  5. Step 5: Solve for x
    x = 3,227,134,992.89/71,638.12
  6. Step 6: Final answer
    x = 45,047.73

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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.