Home / 70,238.26-105,198.36-54,331.48

Finding the Fourth Proportional to 70,238.26, 105,198.36 and 54,331.48

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Solution

The fourth proportional to 70,238.26, 105,198.36 and 54,331.48 is: 81,374.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,238.26 : 105,198.36 = 54,331.48 : x
  2. Step 2: Convert to fraction form
    70,238.26/105,198.36 = 54,331.48/x
  3. Step 3: Cross multiply
    70,238.26x = 105,198.36 × 54,331.48
  4. Step 4: Simplify right side
    70,238.26x = 5,715,582,592.37
  5. Step 5: Solve for x
    x = 5,715,582,592.37/70,238.26
  6. Step 6: Final answer
    x = 81,374.21

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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.