Home / 54,123.18-74,685-30,249.03

Finding the Fourth Proportional to 54,123.18, 74,685 and 30,249.03

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Solution

The fourth proportional to 54,123.18, 74,685 and 30,249.03 is: 41,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,123.18 : 74,685 = 30,249.03 : x
  2. Step 2: Convert to fraction form
    54,123.18/74,685 = 30,249.03/x
  3. Step 3: Cross multiply
    54,123.18x = 74,685 × 30,249.03
  4. Step 4: Simplify right side
    54,123.18x = 2,259,148,805.55
  5. Step 5: Solve for x
    x = 2,259,148,805.55/54,123.18
  6. Step 6: Final answer
    x = 41,740.87

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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.