Home / 76,873.32-115,320.12-26,949.60

Finding the Fourth Proportional to 76,873.32, 115,320.12 and 26,949.60

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Solution

The fourth proportional to 76,873.32, 115,320.12 and 26,949.60 is: 40,427.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,873.32 : 115,320.12 = 26,949.60 : x
  2. Step 2: Convert to fraction form
    76,873.32/115,320.12 = 26,949.60/x
  3. Step 3: Cross multiply
    76,873.32x = 115,320.12 × 26,949.60
  4. Step 4: Simplify right side
    76,873.32x = 3,107,831,105.95
  5. Step 5: Solve for x
    x = 3,107,831,105.95/76,873.32
  6. Step 6: Final answer
    x = 40,427.95

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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.