Home / 54,148.41-81,196.86-31,665.51

Finding the Fourth Proportional to 54,148.41, 81,196.86 and 31,665.51

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Solution

The fourth proportional to 54,148.41, 81,196.86 and 31,665.51 is: 47,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,148.41 : 81,196.86 = 31,665.51 : x
  2. Step 2: Convert to fraction form
    54,148.41/81,196.86 = 31,665.51/x
  3. Step 3: Cross multiply
    54,148.41x = 81,196.86 × 31,665.51
  4. Step 4: Simplify right side
    54,148.41x = 2,571,139,982.30
  5. Step 5: Solve for x
    x = 2,571,139,982.30/54,148.41
  6. Step 6: Final answer
    x = 47,483.20

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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.