Home / 57,145.07-85,723.25-19,700.22

Finding the Fourth Proportional to 57,145.07, 85,723.25 and 19,700.22

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Solution

The fourth proportional to 57,145.07, 85,723.25 and 19,700.22 is: 29,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,145.07 : 85,723.25 = 19,700.22 : x
  2. Step 2: Convert to fraction form
    57,145.07/85,723.25 = 19,700.22/x
  3. Step 3: Cross multiply
    57,145.07x = 85,723.25 × 19,700.22
  4. Step 4: Simplify right side
    57,145.07x = 1,688,766,624.88
  5. Step 5: Solve for x
    x = 1,688,766,624.88/57,145.07
  6. Step 6: Final answer
    x = 29,552.27

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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.