Home / 77,005.44-115,508.82-27,085.90

Finding the Fourth Proportional to 77,005.44, 115,508.82 and 27,085.90

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Solution

The fourth proportional to 77,005.44, 115,508.82 and 27,085.90 is: 40,629.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,005.44 : 115,508.82 = 27,085.90 : x
  2. Step 2: Convert to fraction form
    77,005.44/115,508.82 = 27,085.90/x
  3. Step 3: Cross multiply
    77,005.44x = 115,508.82 × 27,085.90
  4. Step 4: Simplify right side
    77,005.44x = 3,128,660,347.64
  5. Step 5: Solve for x
    x = 3,128,660,347.64/77,005.44
  6. Step 6: Final answer
    x = 40,629.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.