Home / 71,612.20-107,423.77-21,696.43

Finding the Fourth Proportional to 71,612.20, 107,423.77 and 21,696.43

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Solution

The fourth proportional to 71,612.20, 107,423.77 and 21,696.43 is: 32,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,612.20 : 107,423.77 = 21,696.43 : x
  2. Step 2: Convert to fraction form
    71,612.20/107,423.77 = 21,696.43/x
  3. Step 3: Cross multiply
    71,612.20x = 107,423.77 × 21,696.43
  4. Step 4: Simplify right side
    71,612.20x = 2,330,712,197.66
  5. Step 5: Solve for x
    x = 2,330,712,197.66/71,612.20
  6. Step 6: Final answer
    x = 32,546.30

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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.