Home / 48,739.20-73,108.80-11,803.20

Finding the Fourth Proportional to 48,739.20, 73,108.80 and 11,803.20

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Solution

The fourth proportional to 48,739.20, 73,108.80 and 11,803.20 is: 17,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,739.20 : 73,108.80 = 11,803.20 : x
  2. Step 2: Convert to fraction form
    48,739.20/73,108.80 = 11,803.20/x
  3. Step 3: Cross multiply
    48,739.20x = 73,108.80 × 11,803.20
  4. Step 4: Simplify right side
    48,739.20x = 862,917,788.16
  5. Step 5: Solve for x
    x = 862,917,788.16/48,739.20
  6. Step 6: Final answer
    x = 17,704.80

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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.