Home / 77,778.98-116,687.10-25,188.56

Finding the Fourth Proportional to 77,778.98, 116,687.10 and 25,188.56

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Solution

The fourth proportional to 77,778.98, 116,687.10 and 25,188.56 is: 37,788.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,778.98 : 116,687.10 = 25,188.56 : x
  2. Step 2: Convert to fraction form
    77,778.98/116,687.10 = 25,188.56/x
  3. Step 3: Cross multiply
    77,778.98x = 116,687.10 × 25,188.56
  4. Step 4: Simplify right side
    77,778.98x = 2,939,180,019.58
  5. Step 5: Solve for x
    x = 2,939,180,019.58/77,778.98
  6. Step 6: Final answer
    x = 37,788.87

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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.