Home / 71,917.47-107,861.63-19,327.41

Finding the Fourth Proportional to 71,917.47, 107,861.63 and 19,327.41

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Solution

The fourth proportional to 71,917.47, 107,861.63 and 19,327.41 is: 28,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,917.47 : 107,861.63 = 19,327.41 : x
  2. Step 2: Convert to fraction form
    71,917.47/107,861.63 = 19,327.41/x
  3. Step 3: Cross multiply
    71,917.47x = 107,861.63 × 19,327.41
  4. Step 4: Simplify right side
    71,917.47x = 2,084,685,849.64
  5. Step 5: Solve for x
    x = 2,084,685,849.64/71,917.47
  6. Step 6: Final answer
    x = 28,987.20

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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.