Home / 81,179.76-112,029.34-45,372.09

Finding the Fourth Proportional to 81,179.76, 112,029.34 and 45,372.09

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Solution

The fourth proportional to 81,179.76, 112,029.34 and 45,372.09 is: 62,614.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,179.76 : 112,029.34 = 45,372.09 : x
  2. Step 2: Convert to fraction form
    81,179.76/112,029.34 = 45,372.09/x
  3. Step 3: Cross multiply
    81,179.76x = 112,029.34 × 45,372.09
  4. Step 4: Simplify right side
    81,179.76x = 5,083,005,297.12
  5. Step 5: Solve for x
    x = 5,083,005,297.12/81,179.76
  6. Step 6: Final answer
    x = 62,614.19

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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.