Home / 79,233.21-109,293.26-64,718.48

Finding the Fourth Proportional to 79,233.21, 109,293.26 and 64,718.48

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Solution

The fourth proportional to 79,233.21, 109,293.26 and 64,718.48 is: 89,271.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,233.21 : 109,293.26 = 64,718.48 : x
  2. Step 2: Convert to fraction form
    79,233.21/109,293.26 = 64,718.48/x
  3. Step 3: Cross multiply
    79,233.21x = 109,293.26 × 64,718.48
  4. Step 4: Simplify right side
    79,233.21x = 7,073,293,611.09
  5. Step 5: Solve for x
    x = 7,073,293,611.09/79,233.21
  6. Step 6: Final answer
    x = 89,271.83

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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.