Home / 82,795.90-114,040.68-63,639.04

Finding the Fourth Proportional to 82,795.90, 114,040.68 and 63,639.04

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Solution

The fourth proportional to 82,795.90, 114,040.68 and 63,639.04 is: 87,654.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,795.90 : 114,040.68 = 63,639.04 : x
  2. Step 2: Convert to fraction form
    82,795.90/114,040.68 = 63,639.04/x
  3. Step 3: Cross multiply
    82,795.90x = 114,040.68 × 63,639.04
  4. Step 4: Simplify right side
    82,795.90x = 7,257,439,396.15
  5. Step 5: Solve for x
    x = 7,257,439,396.15/82,795.90
  6. Step 6: Final answer
    x = 87,654.57

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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.