Home / 77,586.92-116,438.14-57,642.85

Finding the Fourth Proportional to 77,586.92, 116,438.14 and 57,642.85

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Solution

The fourth proportional to 77,586.92, 116,438.14 and 57,642.85 is: 86,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,586.92 : 116,438.14 = 57,642.85 : x
  2. Step 2: Convert to fraction form
    77,586.92/116,438.14 = 57,642.85/x
  3. Step 3: Cross multiply
    77,586.92x = 116,438.14 × 57,642.85
  4. Step 4: Simplify right side
    77,586.92x = 6,711,825,367.89
  5. Step 5: Solve for x
    x = 6,711,825,367.89/77,586.92
  6. Step 6: Final answer
    x = 86,507.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.