Home / 53,492.36-80,236.10-20,209.86

Finding the Fourth Proportional to 53,492.36, 80,236.10 and 20,209.86

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Solution

The fourth proportional to 53,492.36, 80,236.10 and 20,209.86 is: 30,313.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,492.36 : 80,236.10 = 20,209.86 : x
  2. Step 2: Convert to fraction form
    53,492.36/80,236.10 = 20,209.86/x
  3. Step 3: Cross multiply
    53,492.36x = 80,236.10 × 20,209.86
  4. Step 4: Simplify right side
    53,492.36x = 1,621,560,398.47
  5. Step 5: Solve for x
    x = 1,621,560,398.47/53,492.36
  6. Step 6: Final answer
    x = 30,313.87

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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.