Home / 89,211.24-133,815.30-21,743.88

Finding the Fourth Proportional to 89,211.24, 133,815.30 and 21,743.88

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Solution

The fourth proportional to 89,211.24, 133,815.30 and 21,743.88 is: 32,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,211.24 : 133,815.30 = 21,743.88 : x
  2. Step 2: Convert to fraction form
    89,211.24/133,815.30 = 21,743.88/x
  3. Step 3: Cross multiply
    89,211.24x = 133,815.30 × 21,743.88
  4. Step 4: Simplify right side
    89,211.24x = 2,909,663,825.36
  5. Step 5: Solve for x
    x = 2,909,663,825.36/89,211.24
  6. Step 6: Final answer
    x = 32,615.44

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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.