Home / 89,622.54-123,665.40-51,889.50

Finding the Fourth Proportional to 89,622.54, 123,665.40 and 51,889.50

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Solution

The fourth proportional to 89,622.54, 123,665.40 and 51,889.50 is: 71,599.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,622.54 : 123,665.40 = 51,889.50 : x
  2. Step 2: Convert to fraction form
    89,622.54/123,665.40 = 51,889.50/x
  3. Step 3: Cross multiply
    89,622.54x = 123,665.40 × 51,889.50
  4. Step 4: Simplify right side
    89,622.54x = 6,416,935,773.30
  5. Step 5: Solve for x
    x = 6,416,935,773.30/89,622.54
  6. Step 6: Final answer
    x = 71,599.57

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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.