Home / 81,076.20-111,852.99-54,176.10

Finding the Fourth Proportional to 81,076.20, 111,852.99 and 54,176.10

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Solution

The fourth proportional to 81,076.20, 111,852.99 and 54,176.10 is: 74,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,076.20 : 111,852.99 = 54,176.10 : x
  2. Step 2: Convert to fraction form
    81,076.20/111,852.99 = 54,176.10/x
  3. Step 3: Cross multiply
    81,076.20x = 111,852.99 × 54,176.10
  4. Step 4: Simplify right side
    81,076.20x = 6,059,758,771.54
  5. Step 5: Solve for x
    x = 6,059,758,771.54/81,076.20
  6. Step 6: Final answer
    x = 74,741.52

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1.5x scale

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.