Home / 40,728.03-61,092.09-11,146.12

Finding the Fourth Proportional to 40,728.03, 61,092.09 and 11,146.12

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Solution

The fourth proportional to 40,728.03, 61,092.09 and 11,146.12 is: 16,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,728.03 : 61,092.09 = 11,146.12 : x
  2. Step 2: Convert to fraction form
    40,728.03/61,092.09 = 11,146.12/x
  3. Step 3: Cross multiply
    40,728.03x = 61,092.09 × 11,146.12
  4. Step 4: Simplify right side
    40,728.03x = 680,939,613.46
  5. Step 5: Solve for x
    x = 680,939,613.46/40,728.03
  6. Step 6: Final answer
    x = 16,719.19

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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.