Home / 50,534.63-75,769.53-20,972.87

Finding the Fourth Proportional to 50,534.63, 75,769.53 and 20,972.87

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Solution

The fourth proportional to 50,534.63, 75,769.53 and 20,972.87 is: 31,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,534.63 : 75,769.53 = 20,972.87 : x
  2. Step 2: Convert to fraction form
    50,534.63/75,769.53 = 20,972.87/x
  3. Step 3: Cross multiply
    50,534.63x = 75,769.53 × 20,972.87
  4. Step 4: Simplify right side
    50,534.63x = 1,589,104,123.80
  5. Step 5: Solve for x
    x = 1,589,104,123.80/50,534.63
  6. Step 6: Final answer
    x = 31,445.85

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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.