Home / 85,976.92-128,991-41,032.03

Finding the Fourth Proportional to 85,976.92, 128,991 and 41,032.03

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Solution

The fourth proportional to 85,976.92, 128,991 and 41,032.03 is: 61,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,976.92 : 128,991 = 41,032.03 : x
  2. Step 2: Convert to fraction form
    85,976.92/128,991 = 41,032.03/x
  3. Step 3: Cross multiply
    85,976.92x = 128,991 × 41,032.03
  4. Step 4: Simplify right side
    85,976.92x = 5,292,762,581.73
  5. Step 5: Solve for x
    x = 5,292,762,581.73/85,976.92
  6. Step 6: Final answer
    x = 61,560.27

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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.