Home / 54,559.71-81,830.44-15,120.81

Finding the Fourth Proportional to 54,559.71, 81,830.44 and 15,120.81

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Solution

The fourth proportional to 54,559.71, 81,830.44 and 15,120.81 is: 22,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,559.71 : 81,830.44 = 15,120.81 : x
  2. Step 2: Convert to fraction form
    54,559.71/81,830.44 = 15,120.81/x
  3. Step 3: Cross multiply
    54,559.71x = 81,830.44 × 15,120.81
  4. Step 4: Simplify right side
    54,559.71x = 1,237,342,535.46
  5. Step 5: Solve for x
    x = 1,237,342,535.46/54,559.71
  6. Step 6: Final answer
    x = 22,678.69

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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.