Home / 66,588.28-99,856.72-27,131.56

Finding the Fourth Proportional to 66,588.28, 99,856.72 and 27,131.56

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Solution

The fourth proportional to 66,588.28, 99,856.72 and 27,131.56 is: 40,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,588.28 : 99,856.72 = 27,131.56 : x
  2. Step 2: Convert to fraction form
    66,588.28/99,856.72 = 27,131.56/x
  3. Step 3: Cross multiply
    66,588.28x = 99,856.72 × 27,131.56
  4. Step 4: Simplify right side
    66,588.28x = 2,709,268,590.08
  5. Step 5: Solve for x
    x = 2,709,268,590.08/66,588.28
  6. Step 6: Final answer
    x = 40,686.87

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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.