Home / 49,990.10-74,956.80-20,373.26

Finding the Fourth Proportional to 49,990.10, 74,956.80 and 20,373.26

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Solution

The fourth proportional to 49,990.10, 74,956.80 and 20,373.26 is: 30,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,990.10 : 74,956.80 = 20,373.26 : x
  2. Step 2: Convert to fraction form
    49,990.10/74,956.80 = 20,373.26/x
  3. Step 3: Cross multiply
    49,990.10x = 74,956.80 × 20,373.26
  4. Step 4: Simplify right side
    49,990.10x = 1,527,114,375.17
  5. Step 5: Solve for x
    x = 1,527,114,375.17/49,990.10
  6. Step 6: Final answer
    x = 30,548.34

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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.