Home / 74,305.24-111,456.06-18,145.72

Finding the Fourth Proportional to 74,305.24, 111,456.06 and 18,145.72

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Solution

The fourth proportional to 74,305.24, 111,456.06 and 18,145.72 is: 27,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,305.24 : 111,456.06 = 18,145.72 : x
  2. Step 2: Convert to fraction form
    74,305.24/111,456.06 = 18,145.72/x
  3. Step 3: Cross multiply
    74,305.24x = 111,456.06 × 18,145.72
  4. Step 4: Simplify right side
    74,305.24x = 2,022,450,457.06
  5. Step 5: Solve for x
    x = 2,022,450,457.06/74,305.24
  6. Step 6: Final answer
    x = 27,218.14

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1.5x scale

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.