Home / 61,331.52-91,997.28-19,211.96

Finding the Fourth Proportional to 61,331.52, 91,997.28 and 19,211.96

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Solution

The fourth proportional to 61,331.52, 91,997.28 and 19,211.96 is: 28,817.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,331.52 : 91,997.28 = 19,211.96 : x
  2. Step 2: Convert to fraction form
    61,331.52/91,997.28 = 19,211.96/x
  3. Step 3: Cross multiply
    61,331.52x = 91,997.28 × 19,211.96
  4. Step 4: Simplify right side
    61,331.52x = 1,767,448,063.47
  5. Step 5: Solve for x
    x = 1,767,448,063.47/61,331.52
  6. Step 6: Final answer
    x = 28,817.94

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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.