Home / 51,035.12-76,567.20-19,879.28

Finding the Fourth Proportional to 51,035.12, 76,567.20 and 19,879.28

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Solution

The fourth proportional to 51,035.12, 76,567.20 and 19,879.28 is: 29,824.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,035.12 : 76,567.20 = 19,879.28 : x
  2. Step 2: Convert to fraction form
    51,035.12/76,567.20 = 19,879.28/x
  3. Step 3: Cross multiply
    51,035.12x = 76,567.20 × 19,879.28
  4. Step 4: Simplify right side
    51,035.12x = 1,522,100,807.62
  5. Step 5: Solve for x
    x = 1,522,100,807.62/51,035.12
  6. Step 6: Final answer
    x = 29,824.58

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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.