Home / 79,669.72-109,939.80-43,853.92

Finding the Fourth Proportional to 79,669.72, 109,939.80 and 43,853.92

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Solution

The fourth proportional to 79,669.72, 109,939.80 and 43,853.92 is: 60,515.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,669.72 : 109,939.80 = 43,853.92 : x
  2. Step 2: Convert to fraction form
    79,669.72/109,939.80 = 43,853.92/x
  3. Step 3: Cross multiply
    79,669.72x = 109,939.80 × 43,853.92
  4. Step 4: Simplify right side
    79,669.72x = 4,821,291,194.02
  5. Step 5: Solve for x
    x = 4,821,291,194.02/79,669.72
  6. Step 6: Final answer
    x = 60,515.98

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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.