Home / 72,421.11-108,631.73-41,190.75

Finding the Fourth Proportional to 72,421.11, 108,631.73 and 41,190.75

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Solution

The fourth proportional to 72,421.11, 108,631.73 and 41,190.75 is: 61,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,421.11 : 108,631.73 = 41,190.75 : x
  2. Step 2: Convert to fraction form
    72,421.11/108,631.73 = 41,190.75/x
  3. Step 3: Cross multiply
    72,421.11x = 108,631.73 × 41,190.75
  4. Step 4: Simplify right side
    72,421.11x = 4,474,622,535.47
  5. Step 5: Solve for x
    x = 4,474,622,535.47/72,421.11
  6. Step 6: Final answer
    x = 61,786.16

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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.