Home / 53,891.43-80,805.42-20,613.93

Finding the Fourth Proportional to 53,891.43, 80,805.42 and 20,613.93

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Solution

The fourth proportional to 53,891.43, 80,805.42 and 20,613.93 is: 30,908.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,891.43 : 80,805.42 = 20,613.93 : x
  2. Step 2: Convert to fraction form
    53,891.43/80,805.42 = 20,613.93/x
  3. Step 3: Cross multiply
    53,891.43x = 80,805.42 × 20,613.93
  4. Step 4: Simplify right side
    53,891.43x = 1,665,717,271.50
  5. Step 5: Solve for x
    x = 1,665,717,271.50/53,891.43
  6. Step 6: Final answer
    x = 30,908.76

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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.