Home / 53,529.30-80,210.55-20,231.20

Finding the Fourth Proportional to 53,529.30, 80,210.55 and 20,231.20

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Solution

The fourth proportional to 53,529.30, 80,210.55 and 20,231.20 is: 30,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,529.30 : 80,210.55 = 20,231.20 : x
  2. Step 2: Convert to fraction form
    53,529.30/80,210.55 = 20,231.20/x
  3. Step 3: Cross multiply
    53,529.30x = 80,210.55 × 20,231.20
  4. Step 4: Simplify right side
    53,529.30x = 1,622,755,679.16
  5. Step 5: Solve for x
    x = 1,622,755,679.16/53,529.30
  6. Step 6: Final answer
    x = 30,315.28

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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.