Home / 81,176.92-121,776.85-25,021.60

Finding the Fourth Proportional to 81,176.92, 121,776.85 and 25,021.60

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Solution

The fourth proportional to 81,176.92, 121,776.85 and 25,021.60 is: 37,535.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,176.92 : 121,776.85 = 25,021.60 : x
  2. Step 2: Convert to fraction form
    81,176.92/121,776.85 = 25,021.60/x
  3. Step 3: Cross multiply
    81,176.92x = 121,776.85 × 25,021.60
  4. Step 4: Simplify right side
    81,176.92x = 3,047,051,629.96
  5. Step 5: Solve for x
    x = 3,047,051,629.96/81,176.92
  6. Step 6: Final answer
    x = 37,535.94

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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.