Home / 54,305.94-81,458.75-13,779.38

Finding the Fourth Proportional to 54,305.94, 81,458.75 and 13,779.38

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Solution

The fourth proportional to 54,305.94, 81,458.75 and 13,779.38 is: 20,669.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,305.94 : 81,458.75 = 13,779.38 : x
  2. Step 2: Convert to fraction form
    54,305.94/81,458.75 = 13,779.38/x
  3. Step 3: Cross multiply
    54,305.94x = 81,458.75 × 13,779.38
  4. Step 4: Simplify right side
    54,305.94x = 1,122,450,901.38
  5. Step 5: Solve for x
    x = 1,122,450,901.38/54,305.94
  6. Step 6: Final answer
    x = 20,669.02

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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.