Home / 77,309.40-115,974.90-32,935.80

Finding the Fourth Proportional to 77,309.40, 115,974.90 and 32,935.80

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Solution

The fourth proportional to 77,309.40, 115,974.90 and 32,935.80 is: 49,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,309.40 : 115,974.90 = 32,935.80 : x
  2. Step 2: Convert to fraction form
    77,309.40/115,974.90 = 32,935.80/x
  3. Step 3: Cross multiply
    77,309.40x = 115,974.90 × 32,935.80
  4. Step 4: Simplify right side
    77,309.40x = 3,819,726,111.42
  5. Step 5: Solve for x
    x = 3,819,726,111.42/77,309.40
  6. Step 6: Final answer
    x = 49,408.30

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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.