Home / 86,629.92-129,868.96-41,628.86

Finding the Fourth Proportional to 86,629.92, 129,868.96 and 41,628.86

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Solution

The fourth proportional to 86,629.92, 129,868.96 and 41,628.86 is: 62,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,629.92 : 129,868.96 = 41,628.86 : x
  2. Step 2: Convert to fraction form
    86,629.92/129,868.96 = 41,628.86/x
  3. Step 3: Cross multiply
    86,629.92x = 129,868.96 × 41,628.86
  4. Step 4: Simplify right side
    86,629.92x = 5,406,296,872.55
  5. Step 5: Solve for x
    x = 5,406,296,872.55/86,629.92
  6. Step 6: Final answer
    x = 62,406.81

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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.