Home / 81,336.38-112,218.62-45,520.70

Finding the Fourth Proportional to 81,336.38, 112,218.62 and 45,520.70

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Solution

The fourth proportional to 81,336.38, 112,218.62 and 45,520.70 is: 62,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,336.38 : 112,218.62 = 45,520.70 : x
  2. Step 2: Convert to fraction form
    81,336.38/112,218.62 = 45,520.70/x
  3. Step 3: Cross multiply
    81,336.38x = 112,218.62 × 45,520.70
  4. Step 4: Simplify right side
    81,336.38x = 5,108,270,135.43
  5. Step 5: Solve for x
    x = 5,108,270,135.43/81,336.38
  6. Step 6: Final answer
    x = 62,804.25

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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.