Home / 54,322.50-81,436.66-21,019.65

Finding the Fourth Proportional to 54,322.50, 81,436.66 and 21,019.65

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Solution

The fourth proportional to 54,322.50, 81,436.66 and 21,019.65 is: 31,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,322.50 : 81,436.66 = 21,019.65 : x
  2. Step 2: Convert to fraction form
    54,322.50/81,436.66 = 21,019.65/x
  3. Step 3: Cross multiply
    54,322.50x = 81,436.66 × 21,019.65
  4. Step 4: Simplify right side
    54,322.50x = 1,711,770,037.82
  5. Step 5: Solve for x
    x = 1,711,770,037.82/54,322.50
  6. Step 6: Final answer
    x = 31,511.25

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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.