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Finding the Fourth Proportional to 76,415.49, 114,639.39 and 23,111.45

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Solution

The fourth proportional to 76,415.49, 114,639.39 and 23,111.45 is: 34,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,415.49 : 114,639.39 = 23,111.45 : x
  2. Step 2: Convert to fraction form
    76,415.49/114,639.39 = 23,111.45/x
  3. Step 3: Cross multiply
    76,415.49x = 114,639.39 × 23,111.45
  4. Step 4: Simplify right side
    76,415.49x = 2,649,481,956.82
  5. Step 5: Solve for x
    x = 2,649,481,956.82/76,415.49
  6. Step 6: Final answer
    x = 34,672.05

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