Home / 54,364.54-81,453.82-42,513.78

Finding the Fourth Proportional to 54,364.54, 81,453.82 and 42,513.78

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Solution

The fourth proportional to 54,364.54, 81,453.82 and 42,513.78 is: 63,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,364.54 : 81,453.82 = 42,513.78 : x
  2. Step 2: Convert to fraction form
    54,364.54/81,453.82 = 42,513.78/x
  3. Step 3: Cross multiply
    54,364.54x = 81,453.82 × 42,513.78
  4. Step 4: Simplify right side
    54,364.54x = 3,462,909,783.64
  5. Step 5: Solve for x
    x = 3,462,909,783.64/54,364.54
  6. Step 6: Final answer
    x = 63,697.95

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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.