Home / 90,785.83-125,286.20-53,081.95

Finding the Fourth Proportional to 90,785.83, 125,286.20 and 53,081.95

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Solution

The fourth proportional to 90,785.83, 125,286.20 and 53,081.95 is: 73,254.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,785.83 : 125,286.20 = 53,081.95 : x
  2. Step 2: Convert to fraction form
    90,785.83/125,286.20 = 53,081.95/x
  3. Step 3: Cross multiply
    90,785.83x = 125,286.20 × 53,081.95
  4. Step 4: Simplify right side
    90,785.83x = 6,650,435,804.09
  5. Step 5: Solve for x
    x = 6,650,435,804.09/90,785.83
  6. Step 6: Final answer
    x = 73,254.12

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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.