Home / 76,761.44-114,929.58-39,240.74

Finding the Fourth Proportional to 76,761.44, 114,929.58 and 39,240.74

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Solution

The fourth proportional to 76,761.44, 114,929.58 and 39,240.74 is: 58,752.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,761.44 : 114,929.58 = 39,240.74 : x
  2. Step 2: Convert to fraction form
    76,761.44/114,929.58 = 39,240.74/x
  3. Step 3: Cross multiply
    76,761.44x = 114,929.58 × 39,240.74
  4. Step 4: Simplify right side
    76,761.44x = 4,509,921,767.09
  5. Step 5: Solve for x
    x = 4,509,921,767.09/76,761.44
  6. Step 6: Final answer
    x = 58,752.44

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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.