Home / 82,138.60-113,351.38-44,412.92

Finding the Fourth Proportional to 82,138.60, 113,351.38 and 44,412.92

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Solution

The fourth proportional to 82,138.60, 113,351.38 and 44,412.92 is: 61,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,138.60 : 113,351.38 = 44,412.92 : x
  2. Step 2: Convert to fraction form
    82,138.60/113,351.38 = 44,412.92/x
  3. Step 3: Cross multiply
    82,138.60x = 113,351.38 × 44,412.92
  4. Step 4: Simplify right side
    82,138.60x = 5,034,265,771.83
  5. Step 5: Solve for x
    x = 5,034,265,771.83/82,138.60
  6. Step 6: Final answer
    x = 61,289.89

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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.