Home / 73,968.48-102,076.53-39,976.86

Finding the Fourth Proportional to 73,968.48, 102,076.53 and 39,976.86

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Solution

The fourth proportional to 73,968.48, 102,076.53 and 39,976.86 is: 55,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,968.48 : 102,076.53 = 39,976.86 : x
  2. Step 2: Convert to fraction form
    73,968.48/102,076.53 = 39,976.86/x
  3. Step 3: Cross multiply
    73,968.48x = 102,076.53 × 39,976.86
  4. Step 4: Simplify right side
    73,968.48x = 4,080,699,149.10
  5. Step 5: Solve for x
    x = 4,080,699,149.10/73,968.48
  6. Step 6: Final answer
    x = 55,168.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.