Home / 76,538.28-114,786.60-48,416.12

Finding the Fourth Proportional to 76,538.28, 114,786.60 and 48,416.12

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Solution

The fourth proportional to 76,538.28, 114,786.60 and 48,416.12 is: 72,611.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,538.28 : 114,786.60 = 48,416.12 : x
  2. Step 2: Convert to fraction form
    76,538.28/114,786.60 = 48,416.12/x
  3. Step 3: Cross multiply
    76,538.28x = 114,786.60 × 48,416.12
  4. Step 4: Simplify right side
    76,538.28x = 5,557,521,799.99
  5. Step 5: Solve for x
    x = 5,557,521,799.99/76,538.28
  6. Step 6: Final answer
    x = 72,611.01

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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.