Home / 99,777.96-137,717.19-57,361.14

Finding the Fourth Proportional to 99,777.96, 137,717.19 and 57,361.14

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Solution

The fourth proportional to 99,777.96, 137,717.19 and 57,361.14 is: 79,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,777.96 : 137,717.19 = 57,361.14 : x
  2. Step 2: Convert to fraction form
    99,777.96/137,717.19 = 57,361.14/x
  3. Step 3: Cross multiply
    99,777.96x = 137,717.19 × 57,361.14
  4. Step 4: Simplify right side
    99,777.96x = 7,899,615,016.00
  5. Step 5: Solve for x
    x = 7,899,615,016.00/99,777.96
  6. Step 6: Final answer
    x = 79,171.94

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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.