Home / 79,245.75-109,370.34-49,040.81

Finding the Fourth Proportional to 79,245.75, 109,370.34 and 49,040.81

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Solution

The fourth proportional to 79,245.75, 109,370.34 and 49,040.81 is: 67,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245.75 : 109,370.34 = 49,040.81 : x
  2. Step 2: Convert to fraction form
    79,245.75/109,370.34 = 49,040.81/x
  3. Step 3: Cross multiply
    79,245.75x = 109,370.34 × 49,040.81
  4. Step 4: Simplify right side
    79,245.75x = 5,363,609,516.72
  5. Step 5: Solve for x
    x = 5,363,609,516.72/79,245.75
  6. Step 6: Final answer
    x = 67,683.25

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1.5x scale

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.