Home / 71,350.06-107,041.49-21,431.10

Finding the Fourth Proportional to 71,350.06, 107,041.49 and 21,431.10

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Solution

The fourth proportional to 71,350.06, 107,041.49 and 21,431.10 is: 32,151.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,350.06 : 107,041.49 = 21,431.10 : x
  2. Step 2: Convert to fraction form
    71,350.06/107,041.49 = 21,431.10/x
  3. Step 3: Cross multiply
    71,350.06x = 107,041.49 × 21,431.10
  4. Step 4: Simplify right side
    71,350.06x = 2,294,016,876.34
  5. Step 5: Solve for x
    x = 2,294,016,876.34/71,350.06
  6. Step 6: Final answer
    x = 32,151.58

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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.