Home / 89,806.32-123,902.64-57,996.72

Finding the Fourth Proportional to 89,806.32, 123,902.64 and 57,996.72

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Solution

The fourth proportional to 89,806.32, 123,902.64 and 57,996.72 is: 80,016.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,806.32 : 123,902.64 = 57,996.72 : x
  2. Step 2: Convert to fraction form
    89,806.32/123,902.64 = 57,996.72/x
  3. Step 3: Cross multiply
    89,806.32x = 123,902.64 × 57,996.72
  4. Step 4: Simplify right side
    89,806.32x = 7,185,946,719.34
  5. Step 5: Solve for x
    x = 7,185,946,719.34/89,806.32
  6. Step 6: Final answer
    x = 80,016.05

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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.