Home / 50,760.36-76,138.65-13,320.09

Finding the Fourth Proportional to 50,760.36, 76,138.65 and 13,320.09

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Solution

The fourth proportional to 50,760.36, 76,138.65 and 13,320.09 is: 19,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,760.36 : 76,138.65 = 13,320.09 : x
  2. Step 2: Convert to fraction form
    50,760.36/76,138.65 = 13,320.09/x
  3. Step 3: Cross multiply
    50,760.36x = 76,138.65 × 13,320.09
  4. Step 4: Simplify right side
    50,760.36x = 1,014,173,670.48
  5. Step 5: Solve for x
    x = 1,014,173,670.48/50,760.36
  6. Step 6: Final answer
    x = 19,979.64

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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.