Home / 54,528.92-81,759.87-21,210.15

Finding the Fourth Proportional to 54,528.92, 81,759.87 and 21,210.15

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Solution

The fourth proportional to 54,528.92, 81,759.87 and 21,210.15 is: 31,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,528.92 : 81,759.87 = 21,210.15 : x
  2. Step 2: Convert to fraction form
    54,528.92/81,759.87 = 21,210.15/x
  3. Step 3: Cross multiply
    54,528.92x = 81,759.87 × 21,210.15
  4. Step 4: Simplify right side
    54,528.92x = 1,734,139,106.68
  5. Step 5: Solve for x
    x = 1,734,139,106.68/54,528.92
  6. Step 6: Final answer
    x = 31,802.19

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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.