Home / 65,191.46-89,961.09-40,036.10

Finding the Fourth Proportional to 65,191.46, 89,961.09 and 40,036.10

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Solution

The fourth proportional to 65,191.46, 89,961.09 and 40,036.10 is: 55,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,191.46 : 89,961.09 = 40,036.10 : x
  2. Step 2: Convert to fraction form
    65,191.46/89,961.09 = 40,036.10/x
  3. Step 3: Cross multiply
    65,191.46x = 89,961.09 × 40,036.10
  4. Step 4: Simplify right side
    65,191.46x = 3,601,690,745.54
  5. Step 5: Solve for x
    x = 3,601,690,745.54/65,191.46
  6. Step 6: Final answer
    x = 55,247.90

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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.