Home / 88,105.41-121,583.66-49,864.28

Finding the Fourth Proportional to 88,105.41, 121,583.66 and 49,864.28

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Solution

The fourth proportional to 88,105.41, 121,583.66 and 49,864.28 is: 68,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,105.41 : 121,583.66 = 49,864.28 : x
  2. Step 2: Convert to fraction form
    88,105.41/121,583.66 = 49,864.28/x
  3. Step 3: Cross multiply
    88,105.41x = 121,583.66 × 49,864.28
  4. Step 4: Simplify right side
    88,105.41x = 6,062,680,808.43
  5. Step 5: Solve for x
    x = 6,062,680,808.43/88,105.41
  6. Step 6: Final answer
    x = 68,811.67

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Why These Related Problems?

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