Home / 53,939.10-80,908.65-18,882.30

Finding the Fourth Proportional to 53,939.10, 80,908.65 and 18,882.30

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Solution

The fourth proportional to 53,939.10, 80,908.65 and 18,882.30 is: 28,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,939.10 : 80,908.65 = 18,882.30 : x
  2. Step 2: Convert to fraction form
    53,939.10/80,908.65 = 18,882.30/x
  3. Step 3: Cross multiply
    53,939.10x = 80,908.65 × 18,882.30
  4. Step 4: Simplify right side
    53,939.10x = 1,527,741,401.90
  5. Step 5: Solve for x
    x = 1,527,741,401.90/53,939.10
  6. Step 6: Final answer
    x = 28,323.45

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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.