Home / 57,166.15-85,758.87-19,716.21

Finding the Fourth Proportional to 57,166.15, 85,758.87 and 19,716.21

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Solution

The fourth proportional to 57,166.15, 85,758.87 and 19,716.21 is: 29,577.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,166.15 : 85,758.87 = 19,716.21 : x
  2. Step 2: Convert to fraction form
    57,166.15/85,758.87 = 19,716.21/x
  3. Step 3: Cross multiply
    57,166.15x = 85,758.87 × 19,716.21
  4. Step 4: Simplify right side
    57,166.15x = 1,690,839,725.18
  5. Step 5: Solve for x
    x = 1,690,839,725.18/57,166.15
  6. Step 6: Final answer
    x = 29,577.64

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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.