Home / 86,865.92-119,875.20-47,121.92

Finding the Fourth Proportional to 86,865.92, 119,875.20 and 47,121.92

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Solution

The fourth proportional to 86,865.92, 119,875.20 and 47,121.92 is: 65,028.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,865.92 : 119,875.20 = 47,121.92 : x
  2. Step 2: Convert to fraction form
    86,865.92/119,875.20 = 47,121.92/x
  3. Step 3: Cross multiply
    86,865.92x = 119,875.20 × 47,121.92
  4. Step 4: Simplify right side
    86,865.92x = 5,648,749,584.38
  5. Step 5: Solve for x
    x = 5,648,749,584.38/86,865.92
  6. Step 6: Final answer
    x = 65,028.37

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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.