Home / 54,468.71-81,719.46-19,403.81

Finding the Fourth Proportional to 54,468.71, 81,719.46 and 19,403.81

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Solution

The fourth proportional to 54,468.71, 81,719.46 and 19,403.81 is: 29,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,468.71 : 81,719.46 = 19,403.81 : x
  2. Step 2: Convert to fraction form
    54,468.71/81,719.46 = 19,403.81/x
  3. Step 3: Cross multiply
    54,468.71x = 81,719.46 × 19,403.81
  4. Step 4: Simplify right side
    54,468.71x = 1,585,668,466.55
  5. Step 5: Solve for x
    x = 1,585,668,466.55/54,468.71
  6. Step 6: Final answer
    x = 29,111.55

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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.