Home / 81,530.01-112,512.58-49,260.15

Finding the Fourth Proportional to 81,530.01, 112,512.58 and 49,260.15

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Solution

The fourth proportional to 81,530.01, 112,512.58 and 49,260.15 is: 67,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,530.01 : 112,512.58 = 49,260.15 : x
  2. Step 2: Convert to fraction form
    81,530.01/112,512.58 = 49,260.15/x
  3. Step 3: Cross multiply
    81,530.01x = 112,512.58 × 49,260.15
  4. Step 4: Simplify right side
    81,530.01x = 5,542,386,444.54
  5. Step 5: Solve for x
    x = 5,542,386,444.54/81,530.01
  6. Step 6: Final answer
    x = 67,979.71

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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.