Home / 53,530.30-80,212.05-20,232.20

Finding the Fourth Proportional to 53,530.30, 80,212.05 and 20,232.20

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Solution

The fourth proportional to 53,530.30, 80,212.05 and 20,232.20 is: 30,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,530.30 : 80,212.05 = 20,232.20 : x
  2. Step 2: Convert to fraction form
    53,530.30/80,212.05 = 20,232.20/x
  3. Step 3: Cross multiply
    53,530.30x = 80,212.05 × 20,232.20
  4. Step 4: Simplify right side
    53,530.30x = 1,622,866,238.01
  5. Step 5: Solve for x
    x = 1,622,866,238.01/53,530.30
  6. Step 6: Final answer
    x = 30,316.78

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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.