Home / 54,214.11-74,815.47-30,340.80

Finding the Fourth Proportional to 54,214.11, 74,815.47 and 30,340.80

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Solution

The fourth proportional to 54,214.11, 74,815.47 and 30,340.80 is: 41,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,214.11 : 74,815.47 = 30,340.80 : x
  2. Step 2: Convert to fraction form
    54,214.11/74,815.47 = 30,340.80/x
  3. Step 3: Cross multiply
    54,214.11x = 74,815.47 × 30,340.80
  4. Step 4: Simplify right side
    54,214.11x = 2,269,961,212.18
  5. Step 5: Solve for x
    x = 2,269,961,212.18/54,214.11
  6. Step 6: Final answer
    x = 41,870.30

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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.