Home / 81,530.28-112,512.94-49,260.41

Finding the Fourth Proportional to 81,530.28, 112,512.94 and 49,260.41

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Solution

The fourth proportional to 81,530.28, 112,512.94 and 49,260.41 is: 67,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,530.28 : 112,512.94 = 49,260.41 : x
  2. Step 2: Convert to fraction form
    81,530.28/112,512.94 = 49,260.41/x
  3. Step 3: Cross multiply
    81,530.28x = 112,512.94 × 49,260.41
  4. Step 4: Simplify right side
    81,530.28x = 5,542,432,745.84
  5. Step 5: Solve for x
    x = 5,542,432,745.84/81,530.28
  6. Step 6: Final answer
    x = 67,980.05

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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.