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Finding the Fourth Proportional to 54,321.67, 81,482.51 and 19,253.13

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Solution

The fourth proportional to 54,321.67, 81,482.51 and 19,253.13 is: 28,879.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.67 : 81,482.51 = 19,253.13 : x
  2. Step 2: Convert to fraction form
    54,321.67/81,482.51 = 19,253.13/x
  3. Step 3: Cross multiply
    54,321.67x = 81,482.51 × 19,253.13
  4. Step 4: Simplify right side
    54,321.67x = 1,568,793,357.76
  5. Step 5: Solve for x
    x = 1,568,793,357.76/54,321.67
  6. Step 6: Final answer
    x = 28,879.70

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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.