Home / 77,911.92-107,589.26-58,758.89

Finding the Fourth Proportional to 77,911.92, 107,589.26 and 58,758.89

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Solution

The fourth proportional to 77,911.92, 107,589.26 and 58,758.89 is: 81,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,911.92 : 107,589.26 = 58,758.89 : x
  2. Step 2: Convert to fraction form
    77,911.92/107,589.26 = 58,758.89/x
  3. Step 3: Cross multiply
    77,911.92x = 107,589.26 × 58,758.89
  4. Step 4: Simplify right side
    77,911.92x = 6,321,825,102.47
  5. Step 5: Solve for x
    x = 6,321,825,102.47/77,911.92
  6. Step 6: Final answer
    x = 81,140.67

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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.