Home / 71,861.10-107,803.17-21,265.26

Finding the Fourth Proportional to 71,861.10, 107,803.17 and 21,265.26

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Solution

The fourth proportional to 71,861.10, 107,803.17 and 21,265.26 is: 31,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,861.10 : 107,803.17 = 21,265.26 : x
  2. Step 2: Convert to fraction form
    71,861.10/107,803.17 = 21,265.26/x
  3. Step 3: Cross multiply
    71,861.10x = 107,803.17 × 21,265.26
  4. Step 4: Simplify right side
    71,861.10x = 2,292,462,438.87
  5. Step 5: Solve for x
    x = 2,292,462,438.87/71,861.10
  6. Step 6: Final answer
    x = 31,901.30

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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.