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Finding the Fourth Proportional to 50,720.80, 75,714.68 and 44,500

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Solution

The fourth proportional to 50,720.80, 75,714.68 and 44,500 is: 66,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720.80 : 75,714.68 = 44,500 : x
  2. Step 2: Convert to fraction form
    50,720.80/75,714.68 = 44,500/x
  3. Step 3: Cross multiply
    50,720.80x = 75,714.68 × 44,500
  4. Step 4: Simplify right side
    50,720.80x = 3,369,303,260.00
  5. Step 5: Solve for x
    x = 3,369,303,260.00/50,720.80
  6. Step 6: Final answer
    x = 66,428.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.