Home / 54,221.68-81,339.08-19,154.16

Finding the Fourth Proportional to 54,221.68, 81,339.08 and 19,154.16

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Solution

The fourth proportional to 54,221.68, 81,339.08 and 19,154.16 is: 28,733.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,221.68 : 81,339.08 = 19,154.16 : x
  2. Step 2: Convert to fraction form
    54,221.68/81,339.08 = 19,154.16/x
  3. Step 3: Cross multiply
    54,221.68x = 81,339.08 × 19,154.16
  4. Step 4: Simplify right side
    54,221.68x = 1,557,981,752.57
  5. Step 5: Solve for x
    x = 1,557,981,752.57/54,221.68
  6. Step 6: Final answer
    x = 28,733.56

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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.