Home / 81,178.26-112,097.25-51,015.84

Finding the Fourth Proportional to 81,178.26, 112,097.25 and 51,015.84

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Solution

The fourth proportional to 81,178.26, 112,097.25 and 51,015.84 is: 70,446.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,178.26 : 112,097.25 = 51,015.84 : x
  2. Step 2: Convert to fraction form
    81,178.26/112,097.25 = 51,015.84/x
  3. Step 3: Cross multiply
    81,178.26x = 112,097.25 × 51,015.84
  4. Step 4: Simplify right side
    81,178.26x = 5,718,735,370.44
  5. Step 5: Solve for x
    x = 5,718,735,370.44/81,178.26
  6. Step 6: Final answer
    x = 70,446.64

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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.