Home / 76,521.27-114,781.75-20,361.38

Finding the Fourth Proportional to 76,521.27, 114,781.75 and 20,361.38

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Solution

The fourth proportional to 76,521.27, 114,781.75 and 20,361.38 is: 30,542.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,521.27 : 114,781.75 = 20,361.38 : x
  2. Step 2: Convert to fraction form
    76,521.27/114,781.75 = 20,361.38/x
  3. Step 3: Cross multiply
    76,521.27x = 114,781.75 × 20,361.38
  4. Step 4: Simplify right side
    76,521.27x = 2,337,114,204.00
  5. Step 5: Solve for x
    x = 2,337,114,204.00/76,521.27
  6. Step 6: Final answer
    x = 30,542.02

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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.