Home / 54,435.69-81,632.46-21,151.35

Finding the Fourth Proportional to 54,435.69, 81,632.46 and 21,151.35

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Solution

The fourth proportional to 54,435.69, 81,632.46 and 21,151.35 is: 31,718.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,435.69 : 81,632.46 = 21,151.35 : x
  2. Step 2: Convert to fraction form
    54,435.69/81,632.46 = 21,151.35/x
  3. Step 3: Cross multiply
    54,435.69x = 81,632.46 × 21,151.35
  4. Step 4: Simplify right side
    54,435.69x = 1,726,636,732.82
  5. Step 5: Solve for x
    x = 1,726,636,732.82/54,435.69
  6. Step 6: Final answer
    x = 31,718.84

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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.