Home / 53,741.21-80,612.61-20,463.12

Finding the Fourth Proportional to 53,741.21, 80,612.61 and 20,463.12

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Solution

The fourth proportional to 53,741.21, 80,612.61 and 20,463.12 is: 30,694.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,741.21 : 80,612.61 = 20,463.12 : x
  2. Step 2: Convert to fraction form
    53,741.21/80,612.61 = 20,463.12/x
  3. Step 3: Cross multiply
    53,741.21x = 80,612.61 × 20,463.12
  4. Step 4: Simplify right side
    53,741.21x = 1,649,585,171.28
  5. Step 5: Solve for x
    x = 1,649,585,171.28/53,741.21
  6. Step 6: Final answer
    x = 30,694.98

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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.