Home / 53,359.43-80,042.28-20,079.79

Finding the Fourth Proportional to 53,359.43, 80,042.28 and 20,079.79

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Solution

The fourth proportional to 53,359.43, 80,042.28 and 20,079.79 is: 30,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,359.43 : 80,042.28 = 20,079.79 : x
  2. Step 2: Convert to fraction form
    53,359.43/80,042.28 = 20,079.79/x
  3. Step 3: Cross multiply
    53,359.43x = 80,042.28 × 20,079.79
  4. Step 4: Simplify right side
    53,359.43x = 1,607,231,723.11
  5. Step 5: Solve for x
    x = 1,607,231,723.11/53,359.43
  6. Step 6: Final answer
    x = 30,120.85

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1.5x scale

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.