Home / 54,619.08-81,930.24-21,337.80

Finding the Fourth Proportional to 54,619.08, 81,930.24 and 21,337.80

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Solution

The fourth proportional to 54,619.08, 81,930.24 and 21,337.80 is: 32,007.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,619.08 : 81,930.24 = 21,337.80 : x
  2. Step 2: Convert to fraction form
    54,619.08/81,930.24 = 21,337.80/x
  3. Step 3: Cross multiply
    54,619.08x = 81,930.24 × 21,337.80
  4. Step 4: Simplify right side
    54,619.08x = 1,748,211,075.07
  5. Step 5: Solve for x
    x = 1,748,211,075.07/54,619.08
  6. Step 6: Final answer
    x = 32,007.33

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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.