Home / 40,768.56-61,154.16-11,186.28

Finding the Fourth Proportional to 40,768.56, 61,154.16 and 11,186.28

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Solution

The fourth proportional to 40,768.56, 61,154.16 and 11,186.28 is: 16,779.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,768.56 : 61,154.16 = 11,186.28 : x
  2. Step 2: Convert to fraction form
    40,768.56/61,154.16 = 11,186.28/x
  3. Step 3: Cross multiply
    40,768.56x = 61,154.16 × 11,186.28
  4. Step 4: Simplify right side
    40,768.56x = 684,087,556.92
  5. Step 5: Solve for x
    x = 684,087,556.92/40,768.56
  6. Step 6: Final answer
    x = 16,779.78

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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.