Home / 82,401.16-113,722.07-50,138.12

Finding the Fourth Proportional to 82,401.16, 113,722.07 and 50,138.12

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Solution

The fourth proportional to 82,401.16, 113,722.07 and 50,138.12 is: 69,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,401.16 : 113,722.07 = 50,138.12 : x
  2. Step 2: Convert to fraction form
    82,401.16/113,722.07 = 50,138.12/x
  3. Step 3: Cross multiply
    82,401.16x = 113,722.07 × 50,138.12
  4. Step 4: Simplify right side
    82,401.16x = 5,701,811,201.96
  5. Step 5: Solve for x
    x = 5,701,811,201.96/82,401.16
  6. Step 6: Final answer
    x = 69,195.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.