Home / 70,439.19-105,665.34-25,471.82

Finding the Fourth Proportional to 70,439.19, 105,665.34 and 25,471.82

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Solution

The fourth proportional to 70,439.19, 105,665.34 and 25,471.82 is: 38,210.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,439.19 : 105,665.34 = 25,471.82 : x
  2. Step 2: Convert to fraction form
    70,439.19/105,665.34 = 25,471.82/x
  3. Step 3: Cross multiply
    70,439.19x = 105,665.34 × 25,471.82
  4. Step 4: Simplify right side
    70,439.19x = 2,691,487,992.39
  5. Step 5: Solve for x
    x = 2,691,487,992.39/70,439.19
  6. Step 6: Final answer
    x = 38,210.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.