Home / 54,003.81-74,529-30,135.15

Finding the Fourth Proportional to 54,003.81, 74,529 and 30,135.15

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Solution

The fourth proportional to 54,003.81, 74,529 and 30,135.15 is: 41,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,003.81 : 74,529 = 30,135.15 : x
  2. Step 2: Convert to fraction form
    54,003.81/74,529 = 30,135.15/x
  3. Step 3: Cross multiply
    54,003.81x = 74,529 × 30,135.15
  4. Step 4: Simplify right side
    54,003.81x = 2,245,942,594.35
  5. Step 5: Solve for x
    x = 2,245,942,594.35/54,003.81
  6. Step 6: Final answer
    x = 41,588.60

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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.