Home / 54,242.76-81,351-20,941.56

Finding the Fourth Proportional to 54,242.76, 81,351 and 20,941.56

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Solution

The fourth proportional to 54,242.76, 81,351 and 20,941.56 is: 31,407.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,242.76 : 81,351 = 20,941.56 : x
  2. Step 2: Convert to fraction form
    54,242.76/81,351 = 20,941.56/x
  3. Step 3: Cross multiply
    54,242.76x = 81,351 × 20,941.56
  4. Step 4: Simplify right side
    54,242.76x = 1,703,616,847.56
  5. Step 5: Solve for x
    x = 1,703,616,847.56/54,242.76
  6. Step 6: Final answer
    x = 31,407.27

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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.