Home / 50,729.76-69,991.20-30,592.80

Finding the Fourth Proportional to 50,729.76, 69,991.20 and 30,592.80

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Solution

The fourth proportional to 50,729.76, 69,991.20 and 30,592.80 is: 42,208.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.76 : 69,991.20 = 30,592.80 : x
  2. Step 2: Convert to fraction form
    50,729.76/69,991.20 = 30,592.80/x
  3. Step 3: Cross multiply
    50,729.76x = 69,991.20 × 30,592.80
  4. Step 4: Simplify right side
    50,729.76x = 2,141,226,783.36
  5. Step 5: Solve for x
    x = 2,141,226,783.36/50,729.76
  6. Step 6: Final answer
    x = 42,208.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.