Home / 76,853.22-115,297.65-30,106.50

Finding the Fourth Proportional to 76,853.22, 115,297.65 and 30,106.50

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Solution

The fourth proportional to 76,853.22, 115,297.65 and 30,106.50 is: 45,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,853.22 : 115,297.65 = 30,106.50 : x
  2. Step 2: Convert to fraction form
    76,853.22/115,297.65 = 30,106.50/x
  3. Step 3: Cross multiply
    76,853.22x = 115,297.65 × 30,106.50
  4. Step 4: Simplify right side
    76,853.22x = 3,471,208,699.73
  5. Step 5: Solve for x
    x = 3,471,208,699.73/76,853.22
  6. Step 6: Final answer
    x = 45,166.73

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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.