Home / 54,921.51-82,382.40-13,368.51

Finding the Fourth Proportional to 54,921.51, 82,382.40 and 13,368.51

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Solution

The fourth proportional to 54,921.51, 82,382.40 and 13,368.51 is: 20,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,921.51 : 82,382.40 = 13,368.51 : x
  2. Step 2: Convert to fraction form
    54,921.51/82,382.40 = 13,368.51/x
  3. Step 3: Cross multiply
    54,921.51x = 82,382.40 × 13,368.51
  4. Step 4: Simplify right side
    54,921.51x = 1,101,329,938.22
  5. Step 5: Solve for x
    x = 1,101,329,938.22/54,921.51
  6. Step 6: Final answer
    x = 20,052.80

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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.