Home / 77,669.67-107,589.99-76,095.03

Finding the Fourth Proportional to 77,669.67, 107,589.99 and 76,095.03

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Solution

The fourth proportional to 77,669.67, 107,589.99 and 76,095.03 is: 105,408.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,669.67 : 107,589.99 = 76,095.03 : x
  2. Step 2: Convert to fraction form
    77,669.67/107,589.99 = 76,095.03/x
  3. Step 3: Cross multiply
    77,669.67x = 107,589.99 × 76,095.03
  4. Step 4: Simplify right side
    77,669.67x = 8,187,063,516.75
  5. Step 5: Solve for x
    x = 8,187,063,516.75/77,669.67
  6. Step 6: Final answer
    x = 105,408.76

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.