Home / 76,715.35-115,079.52-23,419.27

Finding the Fourth Proportional to 76,715.35, 115,079.52 and 23,419.27

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Solution

The fourth proportional to 76,715.35, 115,079.52 and 23,419.27 is: 35,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,715.35 : 115,079.52 = 23,419.27 : x
  2. Step 2: Convert to fraction form
    76,715.35/115,079.52 = 23,419.27/x
  3. Step 3: Cross multiply
    76,715.35x = 115,079.52 × 23,419.27
  4. Step 4: Simplify right side
    76,715.35x = 2,695,078,350.35
  5. Step 5: Solve for x
    x = 2,695,078,350.35/76,715.35
  6. Step 6: Final answer
    x = 35,130.89

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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.