Home / 54,293.78-81,390.24-21,035.58

Finding the Fourth Proportional to 54,293.78, 81,390.24 and 21,035.58

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Solution

The fourth proportional to 54,293.78, 81,390.24 and 21,035.58 is: 31,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,293.78 : 81,390.24 = 21,035.58 : x
  2. Step 2: Convert to fraction form
    54,293.78/81,390.24 = 21,035.58/x
  3. Step 3: Cross multiply
    54,293.78x = 81,390.24 × 21,035.58
  4. Step 4: Simplify right side
    54,293.78x = 1,712,090,904.74
  5. Step 5: Solve for x
    x = 1,712,090,904.74/54,293.78
  6. Step 6: Final answer
    x = 31,533.83

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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.