Home / 54,219.90-81,302.54-22,621.76

Finding the Fourth Proportional to 54,219.90, 81,302.54 and 22,621.76

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Solution

The fourth proportional to 54,219.90, 81,302.54 and 22,621.76 is: 33,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,219.90 : 81,302.54 = 22,621.76 : x
  2. Step 2: Convert to fraction form
    54,219.90/81,302.54 = 22,621.76/x
  3. Step 3: Cross multiply
    54,219.90x = 81,302.54 × 22,621.76
  4. Step 4: Simplify right side
    54,219.90x = 1,839,206,547.27
  5. Step 5: Solve for x
    x = 1,839,206,547.27/54,219.90
  6. Step 6: Final answer
    x = 33,921.25

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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.