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Finding the Fourth Proportional to 75,443.50, 113,015.80 and 51,692.68

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Solution

The fourth proportional to 75,443.50, 113,015.80 and 51,692.68 is: 77,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,443.50 : 113,015.80 = 51,692.68 : x
  2. Step 2: Convert to fraction form
    75,443.50/113,015.80 = 51,692.68/x
  3. Step 3: Cross multiply
    75,443.50x = 113,015.80 × 51,692.68
  4. Step 4: Simplify right side
    75,443.50x = 5,842,089,584.34
  5. Step 5: Solve for x
    x = 5,842,089,584.34/75,443.50
  6. Step 6: Final answer
    x = 77,436.62

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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.