Home / 85,832.22-128,361.56-65,575.14

Finding the Fourth Proportional to 85,832.22, 128,361.56 and 65,575.14

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Solution

The fourth proportional to 85,832.22, 128,361.56 and 65,575.14 is: 98,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,832.22 : 128,361.56 = 65,575.14 : x
  2. Step 2: Convert to fraction form
    85,832.22/128,361.56 = 65,575.14/x
  3. Step 3: Cross multiply
    85,832.22x = 128,361.56 × 65,575.14
  4. Step 4: Simplify right side
    85,832.22x = 8,417,327,267.62
  5. Step 5: Solve for x
    x = 8,417,327,267.62/85,832.22
  6. Step 6: Final answer
    x = 98,067.22

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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.