Home / 54,987.84-82,481.78-31,599.36

Finding the Fourth Proportional to 54,987.84, 82,481.78 and 31,599.36

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Solution

The fourth proportional to 54,987.84, 82,481.78 and 31,599.36 is: 47,399.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,987.84 : 82,481.78 = 31,599.36 : x
  2. Step 2: Convert to fraction form
    54,987.84/82,481.78 = 31,599.36/x
  3. Step 3: Cross multiply
    54,987.84x = 82,481.78 × 31,599.36
  4. Step 4: Simplify right side
    54,987.84x = 2,606,371,459.66
  5. Step 5: Solve for x
    x = 2,606,371,459.66/54,987.84
  6. Step 6: Final answer
    x = 47,399.05

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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.