Home / 54,078.99-74,628.84-30,205.68

Finding the Fourth Proportional to 54,078.99, 74,628.84 and 30,205.68

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Solution

The fourth proportional to 54,078.99, 74,628.84 and 30,205.68 is: 41,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,078.99 : 74,628.84 = 30,205.68 : x
  2. Step 2: Convert to fraction form
    54,078.99/74,628.84 = 30,205.68/x
  3. Step 3: Cross multiply
    54,078.99x = 74,628.84 × 30,205.68
  4. Step 4: Simplify right side
    54,078.99x = 2,254,214,859.81
  5. Step 5: Solve for x
    x = 2,254,214,859.81/54,078.99
  6. Step 6: Final answer
    x = 41,683.75

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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.