Home / 54,133.16-81,161.58-20,825.24

Finding the Fourth Proportional to 54,133.16, 81,161.58 and 20,825.24

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Solution

The fourth proportional to 54,133.16, 81,161.58 and 20,825.24 is: 31,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,133.16 : 81,161.58 = 20,825.24 : x
  2. Step 2: Convert to fraction form
    54,133.16/81,161.58 = 20,825.24/x
  3. Step 3: Cross multiply
    54,133.16x = 81,161.58 × 20,825.24
  4. Step 4: Simplify right side
    54,133.16x = 1,690,209,382.28
  5. Step 5: Solve for x
    x = 1,690,209,382.28/54,133.16
  6. Step 6: Final answer
    x = 31,223.18

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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.