Home / 54,485.46-81,706.86-21,201.12

Finding the Fourth Proportional to 54,485.46, 81,706.86 and 21,201.12

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Solution

The fourth proportional to 54,485.46, 81,706.86 and 21,201.12 is: 31,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,485.46 : 81,706.86 = 21,201.12 : x
  2. Step 2: Convert to fraction form
    54,485.46/81,706.86 = 21,201.12/x
  3. Step 3: Cross multiply
    54,485.46x = 81,706.86 × 21,201.12
  4. Step 4: Simplify right side
    54,485.46x = 1,732,276,943.68
  5. Step 5: Solve for x
    x = 1,732,276,943.68/54,485.46
  6. Step 6: Final answer
    x = 31,793.38

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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.