Home / 83,479.32-115,165.26-55,224.36

Finding the Fourth Proportional to 83,479.32, 115,165.26 and 55,224.36

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Solution

The fourth proportional to 83,479.32, 115,165.26 and 55,224.36 is: 76,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,479.32 : 115,165.26 = 55,224.36 : x
  2. Step 2: Convert to fraction form
    83,479.32/115,165.26 = 55,224.36/x
  3. Step 3: Cross multiply
    83,479.32x = 115,165.26 × 55,224.36
  4. Step 4: Simplify right side
    83,479.32x = 6,359,927,777.73
  5. Step 5: Solve for x
    x = 6,359,927,777.73/83,479.32
  6. Step 6: Final answer
    x = 76,185.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.