Home / 54,562.39-81,810.64-21,276.07

Finding the Fourth Proportional to 54,562.39, 81,810.64 and 21,276.07

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Solution

The fourth proportional to 54,562.39, 81,810.64 and 21,276.07 is: 31,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,562.39 : 81,810.64 = 21,276.07 : x
  2. Step 2: Convert to fraction form
    54,562.39/81,810.64 = 21,276.07/x
  3. Step 3: Cross multiply
    54,562.39x = 81,810.64 × 21,276.07
  4. Step 4: Simplify right side
    54,562.39x = 1,740,608,903.38
  5. Step 5: Solve for x
    x = 1,740,608,903.38/54,562.39
  6. Step 6: Final answer
    x = 31,901.26

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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.