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Finding the Fourth Proportional to 76,149.05, 114,192.08 and 28,756.08

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Solution

The fourth proportional to 76,149.05, 114,192.08 and 28,756.08 is: 43,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,149.05 : 114,192.08 = 28,756.08 : x
  2. Step 2: Convert to fraction form
    76,149.05/114,192.08 = 28,756.08/x
  3. Step 3: Cross multiply
    76,149.05x = 114,192.08 × 28,756.08
  4. Step 4: Simplify right side
    76,149.05x = 3,283,716,551.90
  5. Step 5: Solve for x
    x = 3,283,716,551.90/76,149.05
  6. Step 6: Final answer
    x = 43,122.23

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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.