Home / 42,744.73-64,131.15-20,555.26

Finding the Fourth Proportional to 42,744.73, 64,131.15 and 20,555.26

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Solution

The fourth proportional to 42,744.73, 64,131.15 and 20,555.26 is: 30,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,744.73 : 64,131.15 = 20,555.26 : x
  2. Step 2: Convert to fraction form
    42,744.73/64,131.15 = 20,555.26/x
  3. Step 3: Cross multiply
    42,744.73x = 64,131.15 × 20,555.26
  4. Step 4: Simplify right side
    42,744.73x = 1,318,232,462.35
  5. Step 5: Solve for x
    x = 1,318,232,462.35/42,744.73
  6. Step 6: Final answer
    x = 30,839.65

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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.