Home / 72,076.43-99,467.04-40,245.26

Finding the Fourth Proportional to 72,076.43, 99,467.04 and 40,245.26

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Solution

The fourth proportional to 72,076.43, 99,467.04 and 40,245.26 is: 55,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,076.43 : 99,467.04 = 40,245.26 : x
  2. Step 2: Convert to fraction form
    72,076.43/99,467.04 = 40,245.26/x
  3. Step 3: Cross multiply
    72,076.43x = 99,467.04 × 40,245.26
  4. Step 4: Simplify right side
    72,076.43x = 4,003,076,313.44
  5. Step 5: Solve for x
    x = 4,003,076,313.44/72,076.43
  6. Step 6: Final answer
    x = 55,539.32

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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.