Home / 54,613.51-81,920.57-19,074.65

Finding the Fourth Proportional to 54,613.51, 81,920.57 and 19,074.65

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Solution

The fourth proportional to 54,613.51, 81,920.57 and 19,074.65 is: 28,612.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,613.51 : 81,920.57 = 19,074.65 : x
  2. Step 2: Convert to fraction form
    54,613.51/81,920.57 = 19,074.65/x
  3. Step 3: Cross multiply
    54,613.51x = 81,920.57 × 19,074.65
  4. Step 4: Simplify right side
    54,613.51x = 1,562,605,695.57
  5. Step 5: Solve for x
    x = 1,562,605,695.57/54,613.51
  6. Step 6: Final answer
    x = 28,612.07

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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.