Home / 54,185.61-81,258.25-18,636.95

Finding the Fourth Proportional to 54,185.61, 81,258.25 and 18,636.95

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Solution

The fourth proportional to 54,185.61, 81,258.25 and 18,636.95 is: 27,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,185.61 : 81,258.25 = 18,636.95 : x
  2. Step 2: Convert to fraction form
    54,185.61/81,258.25 = 18,636.95/x
  3. Step 3: Cross multiply
    54,185.61x = 81,258.25 × 18,636.95
  4. Step 4: Simplify right side
    54,185.61x = 1,514,405,942.34
  5. Step 5: Solve for x
    x = 1,514,405,942.34/54,185.61
  6. Step 6: Final answer
    x = 27,948.49

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1.5x scale

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.