Home / 79,739.04-119,608.56-54,703.20

Finding the Fourth Proportional to 79,739.04, 119,608.56 and 54,703.20

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Solution

The fourth proportional to 79,739.04, 119,608.56 and 54,703.20 is: 82,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,739.04 : 119,608.56 = 54,703.20 : x
  2. Step 2: Convert to fraction form
    79,739.04/119,608.56 = 54,703.20/x
  3. Step 3: Cross multiply
    79,739.04x = 119,608.56 × 54,703.20
  4. Step 4: Simplify right side
    79,739.04x = 6,542,970,979.39
  5. Step 5: Solve for x
    x = 6,542,970,979.39/79,739.04
  6. Step 6: Final answer
    x = 82,054.80

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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.