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Finding the Fourth Proportional to 104,072.38, 143,619.61 and 56,325.71

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Solution

The fourth proportional to 104,072.38, 143,619.61 and 56,325.71 is: 77,729.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,072.38 : 143,619.61 = 56,325.71 : x
  2. Step 2: Convert to fraction form
    104,072.38/143,619.61 = 56,325.71/x
  3. Step 3: Cross multiply
    104,072.38x = 143,619.61 × 56,325.71
  4. Step 4: Simplify right side
    104,072.38x = 8,089,476,503.17
  5. Step 5: Solve for x
    x = 8,089,476,503.17/104,072.38
  6. Step 6: Final answer
    x = 77,729.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.