Home / 54,021.81-74,553.84-30,153.15

Finding the Fourth Proportional to 54,021.81, 74,553.84 and 30,153.15

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Solution

The fourth proportional to 54,021.81, 74,553.84 and 30,153.15 is: 41,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,021.81 : 74,553.84 = 30,153.15 : x
  2. Step 2: Convert to fraction form
    54,021.81/74,553.84 = 30,153.15/x
  3. Step 3: Cross multiply
    54,021.81x = 74,553.84 × 30,153.15
  4. Step 4: Simplify right side
    54,021.81x = 2,248,033,120.60
  5. Step 5: Solve for x
    x = 2,248,033,120.60/54,021.81
  6. Step 6: Final answer
    x = 41,613.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.