Home / 97,086.96-133,977.78-54,645.12

Finding the Fourth Proportional to 97,086.96, 133,977.78 and 54,645.12

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Solution

The fourth proportional to 97,086.96, 133,977.78 and 54,645.12 is: 75,409.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,086.96 : 133,977.78 = 54,645.12 : x
  2. Step 2: Convert to fraction form
    97,086.96/133,977.78 = 54,645.12/x
  3. Step 3: Cross multiply
    97,086.96x = 133,977.78 × 54,645.12
  4. Step 4: Simplify right side
    97,086.96x = 7,321,231,865.43
  5. Step 5: Solve for x
    x = 7,321,231,865.43/97,086.96
  6. Step 6: Final answer
    x = 75,409.01

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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.