Home / 54,572.40-81,858.60-21,293.55

Finding the Fourth Proportional to 54,572.40, 81,858.60 and 21,293.55

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Solution

The fourth proportional to 54,572.40, 81,858.60 and 21,293.55 is: 31,940.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,572.40 : 81,858.60 = 21,293.55 : x
  2. Step 2: Convert to fraction form
    54,572.40/81,858.60 = 21,293.55/x
  3. Step 3: Cross multiply
    54,572.40x = 81,858.60 × 21,293.55
  4. Step 4: Simplify right side
    54,572.40x = 1,743,060,192.03
  5. Step 5: Solve for x
    x = 1,743,060,192.03/54,572.40
  6. Step 6: Final answer
    x = 31,940.33

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1.5x scale

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.