Home / 53,821.42-80,732.43-18,760.90

Finding the Fourth Proportional to 53,821.42, 80,732.43 and 18,760.90

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Solution

The fourth proportional to 53,821.42, 80,732.43 and 18,760.90 is: 28,141.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,821.42 : 80,732.43 = 18,760.90 : x
  2. Step 2: Convert to fraction form
    53,821.42/80,732.43 = 18,760.90/x
  3. Step 3: Cross multiply
    53,821.42x = 80,732.43 × 18,760.90
  4. Step 4: Simplify right side
    53,821.42x = 1,514,613,045.99
  5. Step 5: Solve for x
    x = 1,514,613,045.99/53,821.42
  6. Step 6: Final answer
    x = 28,141.45

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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.