Home / 77,181.42-106,408.26-55,653.15

Finding the Fourth Proportional to 77,181.42, 106,408.26 and 55,653.15

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Solution

The fourth proportional to 77,181.42, 106,408.26 and 55,653.15 is: 76,727.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,181.42 : 106,408.26 = 55,653.15 : x
  2. Step 2: Convert to fraction form
    77,181.42/106,408.26 = 55,653.15/x
  3. Step 3: Cross multiply
    77,181.42x = 106,408.26 × 55,653.15
  4. Step 4: Simplify right side
    77,181.42x = 5,921,954,855.02
  5. Step 5: Solve for x
    x = 5,921,954,855.02/77,181.42
  6. Step 6: Final answer
    x = 76,727.73

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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.