Home / 40,719.11-61,091.42-12,257.19

Finding the Fourth Proportional to 40,719.11, 61,091.42 and 12,257.19

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Solution

The fourth proportional to 40,719.11, 61,091.42 and 12,257.19 is: 18,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,719.11 : 61,091.42 = 12,257.19 : x
  2. Step 2: Convert to fraction form
    40,719.11/61,091.42 = 12,257.19/x
  3. Step 3: Cross multiply
    40,719.11x = 61,091.42 × 12,257.19
  4. Step 4: Simplify right side
    40,719.11x = 748,809,081.02
  5. Step 5: Solve for x
    x = 748,809,081.02/40,719.11
  6. Step 6: Final answer
    x = 18,389.63

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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.