Home / 81,175.76-112,093.80-51,013.34

Finding the Fourth Proportional to 81,175.76, 112,093.80 and 51,013.34

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Solution

The fourth proportional to 81,175.76, 112,093.80 and 51,013.34 is: 70,443.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.76 : 112,093.80 = 51,013.34 : x
  2. Step 2: Convert to fraction form
    81,175.76/112,093.80 = 51,013.34/x
  3. Step 3: Cross multiply
    81,175.76x = 112,093.80 × 51,013.34
  4. Step 4: Simplify right side
    81,175.76x = 5,718,279,131.29
  5. Step 5: Solve for x
    x = 5,718,279,131.29/81,175.76
  6. Step 6: Final answer
    x = 70,443.19

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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.