Home / 89,932.21-123,991.14-73,739.90

Finding the Fourth Proportional to 89,932.21, 123,991.14 and 73,739.90

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Solution

The fourth proportional to 89,932.21, 123,991.14 and 73,739.90 is: 101,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,932.21 : 123,991.14 = 73,739.90 : x
  2. Step 2: Convert to fraction form
    89,932.21/123,991.14 = 73,739.90/x
  3. Step 3: Cross multiply
    89,932.21x = 123,991.14 × 73,739.90
  4. Step 4: Simplify right side
    89,932.21x = 9,143,094,264.49
  5. Step 5: Solve for x
    x = 9,143,094,264.49/89,932.21
  6. Step 6: Final answer
    x = 101,666.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.