Home / 75,754.81-113,665.69-39,722.66

Finding the Fourth Proportional to 75,754.81, 113,665.69 and 39,722.66

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Solution

The fourth proportional to 75,754.81, 113,665.69 and 39,722.66 is: 59,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,754.81 : 113,665.69 = 39,722.66 : x
  2. Step 2: Convert to fraction form
    75,754.81/113,665.69 = 39,722.66/x
  3. Step 3: Cross multiply
    75,754.81x = 113,665.69 × 39,722.66
  4. Step 4: Simplify right side
    75,754.81x = 4,515,103,557.54
  5. Step 5: Solve for x
    x = 4,515,103,557.54/75,754.81
  6. Step 6: Final answer
    x = 59,601.54

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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.