Home / 71,461.33-107,157.37-21,532.12

Finding the Fourth Proportional to 71,461.33, 107,157.37 and 21,532.12

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Solution

The fourth proportional to 71,461.33, 107,157.37 and 21,532.12 is: 32,287.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,461.33 : 107,157.37 = 21,532.12 : x
  2. Step 2: Convert to fraction form
    71,461.33/107,157.37 = 21,532.12/x
  3. Step 3: Cross multiply
    71,461.33x = 107,157.37 × 21,532.12
  4. Step 4: Simplify right side
    71,461.33x = 2,307,324,760.11
  5. Step 5: Solve for x
    x = 2,307,324,760.11/71,461.33
  6. Step 6: Final answer
    x = 32,287.74

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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.