Home / 50,865.50-76,332.11-20,904.31

Finding the Fourth Proportional to 50,865.50, 76,332.11 and 20,904.31

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Solution

The fourth proportional to 50,865.50, 76,332.11 and 20,904.31 is: 31,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,865.50 : 76,332.11 = 20,904.31 : x
  2. Step 2: Convert to fraction form
    50,865.50/76,332.11 = 20,904.31/x
  3. Step 3: Cross multiply
    50,865.50x = 76,332.11 × 20,904.31
  4. Step 4: Simplify right side
    50,865.50x = 1,595,670,081.29
  5. Step 5: Solve for x
    x = 1,595,670,081.29/50,865.50
  6. Step 6: Final answer
    x = 31,370.38

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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.