Home / 82,399.18-113,669.13-52,133.53

Finding the Fourth Proportional to 82,399.18, 113,669.13 and 52,133.53

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Solution

The fourth proportional to 82,399.18, 113,669.13 and 52,133.53 is: 71,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,399.18 : 113,669.13 = 52,133.53 : x
  2. Step 2: Convert to fraction form
    82,399.18/113,669.13 = 52,133.53/x
  3. Step 3: Cross multiply
    82,399.18x = 113,669.13 × 52,133.53
  4. Step 4: Simplify right side
    82,399.18x = 5,925,972,910.26
  5. Step 5: Solve for x
    x = 5,925,972,910.26/82,399.18
  6. Step 6: Final answer
    x = 71,917.86

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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.