Home / 81,215.38-112,072.62-44,914.70

Finding the Fourth Proportional to 81,215.38, 112,072.62 and 44,914.70

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Solution

The fourth proportional to 81,215.38, 112,072.62 and 44,914.70 is: 61,979.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,215.38 : 112,072.62 = 44,914.70 : x
  2. Step 2: Convert to fraction form
    81,215.38/112,072.62 = 44,914.70/x
  3. Step 3: Cross multiply
    81,215.38x = 112,072.62 × 44,914.70
  4. Step 4: Simplify right side
    81,215.38x = 5,033,708,105.51
  5. Step 5: Solve for x
    x = 5,033,708,105.51/81,215.38
  6. Step 6: Final answer
    x = 61,979.74

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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.