Home / 54,015.12-80,973.42-18,935.64

Finding the Fourth Proportional to 54,015.12, 80,973.42 and 18,935.64

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Solution

The fourth proportional to 54,015.12, 80,973.42 and 18,935.64 is: 28,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,015.12 : 80,973.42 = 18,935.64 : x
  2. Step 2: Convert to fraction form
    54,015.12/80,973.42 = 18,935.64/x
  3. Step 3: Cross multiply
    54,015.12x = 80,973.42 × 18,935.64
  4. Step 4: Simplify right side
    54,015.12x = 1,533,283,530.69
  5. Step 5: Solve for x
    x = 1,533,283,530.69/54,015.12
  6. Step 6: Final answer
    x = 28,386.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.