Home / 53,493.86-80,238.35-20,211.36

Finding the Fourth Proportional to 53,493.86, 80,238.35 and 20,211.36

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Solution

The fourth proportional to 53,493.86, 80,238.35 and 20,211.36 is: 30,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,493.86 : 80,238.35 = 20,211.36 : x
  2. Step 2: Convert to fraction form
    53,493.86/80,238.35 = 20,211.36/x
  3. Step 3: Cross multiply
    53,493.86x = 80,238.35 × 20,211.36
  4. Step 4: Simplify right side
    53,493.86x = 1,621,726,076.60
  5. Step 5: Solve for x
    x = 1,621,726,076.60/53,493.86
  6. Step 6: Final answer
    x = 30,316.12

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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.