Home / 79,074.28-109,118.10-43,261.48

Finding the Fourth Proportional to 79,074.28, 109,118.10 and 43,261.48

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Solution

The fourth proportional to 79,074.28, 109,118.10 and 43,261.48 is: 59,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,074.28 : 109,118.10 = 43,261.48 : x
  2. Step 2: Convert to fraction form
    79,074.28/109,118.10 = 43,261.48/x
  3. Step 3: Cross multiply
    79,074.28x = 109,118.10 × 43,261.48
  4. Step 4: Simplify right side
    79,074.28x = 4,720,610,500.79
  5. Step 5: Solve for x
    x = 4,720,610,500.79/79,074.28
  6. Step 6: Final answer
    x = 59,698.43

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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.