Home / 101,672.05-140,312.60-58,635.54

Finding the Fourth Proportional to 101,672.05, 140,312.60 and 58,635.54

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Solution

The fourth proportional to 101,672.05, 140,312.60 and 58,635.54 is: 80,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,672.05 : 140,312.60 = 58,635.54 : x
  2. Step 2: Convert to fraction form
    101,672.05/140,312.60 = 58,635.54/x
  3. Step 3: Cross multiply
    101,672.05x = 140,312.60 × 58,635.54
  4. Step 4: Simplify right side
    101,672.05x = 8,227,305,069.80
  5. Step 5: Solve for x
    x = 8,227,305,069.80/101,672.05
  6. Step 6: Final answer
    x = 80,920.03

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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.