Home / 81,161.54-112,002.68-45,351.59

Finding the Fourth Proportional to 81,161.54, 112,002.68 and 45,351.59

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Solution

The fourth proportional to 81,161.54, 112,002.68 and 45,351.59 is: 62,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,161.54 : 112,002.68 = 45,351.59 : x
  2. Step 2: Convert to fraction form
    81,161.54/112,002.68 = 45,351.59/x
  3. Step 3: Cross multiply
    81,161.54x = 112,002.68 × 45,351.59
  4. Step 4: Simplify right side
    81,161.54x = 5,079,499,175.63
  5. Step 5: Solve for x
    x = 5,079,499,175.63/81,161.54
  6. Step 6: Final answer
    x = 62,585.05

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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.