Home / 54,533.72-81,788.42-21,254.68

Finding the Fourth Proportional to 54,533.72, 81,788.42 and 21,254.68

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Solution

The fourth proportional to 54,533.72, 81,788.42 and 21,254.68 is: 31,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,533.72 : 81,788.42 = 21,254.68 : x
  2. Step 2: Convert to fraction form
    54,533.72/81,788.42 = 21,254.68/x
  3. Step 3: Cross multiply
    54,533.72x = 81,788.42 × 21,254.68
  4. Step 4: Simplify right side
    54,533.72x = 1,738,386,694.81
  5. Step 5: Solve for x
    x = 1,738,386,694.81/54,533.72
  6. Step 6: Final answer
    x = 31,877.28

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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.