Home / 71,753.04-107,645.94-21,840.21

Finding the Fourth Proportional to 71,753.04, 107,645.94 and 21,840.21

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Solution

The fourth proportional to 71,753.04, 107,645.94 and 21,840.21 is: 32,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,753.04 : 107,645.94 = 21,840.21 : x
  2. Step 2: Convert to fraction form
    71,753.04/107,645.94 = 21,840.21/x
  3. Step 3: Cross multiply
    71,753.04x = 107,645.94 × 21,840.21
  4. Step 4: Simplify right side
    71,753.04x = 2,351,009,935.25
  5. Step 5: Solve for x
    x = 2,351,009,935.25/71,753.04
  6. Step 6: Final answer
    x = 32,765.30

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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.