Home / 76,742.67-115,124.39-26,811.03

Finding the Fourth Proportional to 76,742.67, 115,124.39 and 26,811.03

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Solution

The fourth proportional to 76,742.67, 115,124.39 and 26,811.03 is: 40,220.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,742.67 : 115,124.39 = 26,811.03 : x
  2. Step 2: Convert to fraction form
    76,742.67/115,124.39 = 26,811.03/x
  3. Step 3: Cross multiply
    76,742.67x = 115,124.39 × 26,811.03
  4. Step 4: Simplify right side
    76,742.67x = 3,086,603,872.22
  5. Step 5: Solve for x
    x = 3,086,603,872.22/76,742.67
  6. Step 6: Final answer
    x = 40,220.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.