Home / 54,527.16-81,811.78-21,270.84

Finding the Fourth Proportional to 54,527.16, 81,811.78 and 21,270.84

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Solution

The fourth proportional to 54,527.16, 81,811.78 and 21,270.84 is: 31,914.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,527.16 : 81,811.78 = 21,270.84 : x
  2. Step 2: Convert to fraction form
    54,527.16/81,811.78 = 21,270.84/x
  3. Step 3: Cross multiply
    54,527.16x = 81,811.78 × 21,270.84
  4. Step 4: Simplify right side
    54,527.16x = 1,740,205,282.50
  5. Step 5: Solve for x
    x = 1,740,205,282.50/54,527.16
  6. Step 6: Final answer
    x = 31,914.47

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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.