Home / 54,522.09-81,775.94-18,975.78

Finding the Fourth Proportional to 54,522.09, 81,775.94 and 18,975.78

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Solution

The fourth proportional to 54,522.09, 81,775.94 and 18,975.78 is: 28,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,522.09 : 81,775.94 = 18,975.78 : x
  2. Step 2: Convert to fraction form
    54,522.09/81,775.94 = 18,975.78/x
  3. Step 3: Cross multiply
    54,522.09x = 81,775.94 × 18,975.78
  4. Step 4: Simplify right side
    54,522.09x = 1,551,762,151.85
  5. Step 5: Solve for x
    x = 1,551,762,151.85/54,522.09
  6. Step 6: Final answer
    x = 28,461.16

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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.