Home / 54,406.06-81,570.80-21,098.05

Finding the Fourth Proportional to 54,406.06, 81,570.80 and 21,098.05

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Solution

The fourth proportional to 54,406.06, 81,570.80 and 21,098.05 is: 31,632.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,406.06 : 81,570.80 = 21,098.05 : x
  2. Step 2: Convert to fraction form
    54,406.06/81,570.80 = 21,098.05/x
  3. Step 3: Cross multiply
    54,406.06x = 81,570.80 × 21,098.05
  4. Step 4: Simplify right side
    54,406.06x = 1,720,984,665.76
  5. Step 5: Solve for x
    x = 1,720,984,665.76/54,406.06
  6. Step 6: Final answer
    x = 31,632.23

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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.