Home / 71,619.60-107,370.48-31,610.18

Finding the Fourth Proportional to 71,619.60, 107,370.48 and 31,610.18

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Solution

The fourth proportional to 71,619.60, 107,370.48 and 31,610.18 is: 47,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,619.60 : 107,370.48 = 31,610.18 : x
  2. Step 2: Convert to fraction form
    71,619.60/107,370.48 = 31,610.18/x
  3. Step 3: Cross multiply
    71,619.60x = 107,370.48 × 31,610.18
  4. Step 4: Simplify right side
    71,619.60x = 3,394,000,199.49
  5. Step 5: Solve for x
    x = 3,394,000,199.49/71,619.60
  6. Step 6: Final answer
    x = 47,389.26

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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.