Home / 50,146.86-75,169.63-31,440.03

Finding the Fourth Proportional to 50,146.86, 75,169.63 and 31,440.03

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Solution

The fourth proportional to 50,146.86, 75,169.63 and 31,440.03 is: 47,128.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,146.86 : 75,169.63 = 31,440.03 : x
  2. Step 2: Convert to fraction form
    50,146.86/75,169.63 = 31,440.03/x
  3. Step 3: Cross multiply
    50,146.86x = 75,169.63 × 31,440.03
  4. Step 4: Simplify right side
    50,146.86x = 2,363,335,179.70
  5. Step 5: Solve for x
    x = 2,363,335,179.70/50,146.86
  6. Step 6: Final answer
    x = 47,128.27

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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.