Home / 55,919.56-77,170.44-30,427.54

Finding the Fourth Proportional to 55,919.56, 77,170.44 and 30,427.54

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Solution

The fourth proportional to 55,919.56, 77,170.44 and 30,427.54 is: 41,990.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,919.56 : 77,170.44 = 30,427.54 : x
  2. Step 2: Convert to fraction form
    55,919.56/77,170.44 = 30,427.54/x
  3. Step 3: Cross multiply
    55,919.56x = 77,170.44 × 30,427.54
  4. Step 4: Simplify right side
    55,919.56x = 2,348,106,649.92
  5. Step 5: Solve for x
    x = 2,348,106,649.92/55,919.56
  6. Step 6: Final answer
    x = 41,990.79

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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.