Home / 56,759.99-85,147.04-19,317.18

Finding the Fourth Proportional to 56,759.99, 85,147.04 and 19,317.18

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Solution

The fourth proportional to 56,759.99, 85,147.04 and 19,317.18 is: 28,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,759.99 : 85,147.04 = 19,317.18 : x
  2. Step 2: Convert to fraction form
    56,759.99/85,147.04 = 19,317.18/x
  3. Step 3: Cross multiply
    56,759.99x = 85,147.04 × 19,317.18
  4. Step 4: Simplify right side
    56,759.99x = 1,644,800,698.15
  5. Step 5: Solve for x
    x = 1,644,800,698.15/56,759.99
  6. Step 6: Final answer
    x = 28,978.17

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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.