Home / 53,001.36-79,511.64-21,819.60

Finding the Fourth Proportional to 53,001.36, 79,511.64 and 21,819.60

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Solution

The fourth proportional to 53,001.36, 79,511.64 and 21,819.60 is: 32,733.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,001.36 : 79,511.64 = 21,819.60 : x
  2. Step 2: Convert to fraction form
    53,001.36/79,511.64 = 21,819.60/x
  3. Step 3: Cross multiply
    53,001.36x = 79,511.64 × 21,819.60
  4. Step 4: Simplify right side
    53,001.36x = 1,734,912,180.14
  5. Step 5: Solve for x
    x = 1,734,912,180.14/53,001.36
  6. Step 6: Final answer
    x = 32,733.35

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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.