Home / 50,756.61-76,129.45-13,320.44

Finding the Fourth Proportional to 50,756.61, 76,129.45 and 13,320.44

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Solution

The fourth proportional to 50,756.61, 76,129.45 and 13,320.44 is: 19,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,756.61 : 76,129.45 = 13,320.44 : x
  2. Step 2: Convert to fraction form
    50,756.61/76,129.45 = 13,320.44/x
  3. Step 3: Cross multiply
    50,756.61x = 76,129.45 × 13,320.44
  4. Step 4: Simplify right side
    50,756.61x = 1,014,077,770.96
  5. Step 5: Solve for x
    x = 1,014,077,770.96/50,756.61
  6. Step 6: Final answer
    x = 19,979.23

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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.