Home / 54,087.79-81,131.67-20,360.14

Finding the Fourth Proportional to 54,087.79, 81,131.67 and 20,360.14

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Solution

The fourth proportional to 54,087.79, 81,131.67 and 20,360.14 is: 30,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,087.79 : 81,131.67 = 20,360.14 : x
  2. Step 2: Convert to fraction form
    54,087.79/81,131.67 = 20,360.14/x
  3. Step 3: Cross multiply
    54,087.79x = 81,131.67 × 20,360.14
  4. Step 4: Simplify right side
    54,087.79x = 1,651,852,159.63
  5. Step 5: Solve for x
    x = 1,651,852,159.63/54,087.79
  6. Step 6: Final answer
    x = 30,540.20

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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.