Home / 53,928.80-80,720.40-28,907.36

Finding the Fourth Proportional to 53,928.80, 80,720.40 and 28,907.36

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Solution

The fourth proportional to 53,928.80, 80,720.40 and 28,907.36 is: 43,268.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,928.80 : 80,720.40 = 28,907.36 : x
  2. Step 2: Convert to fraction form
    53,928.80/80,720.40 = 28,907.36/x
  3. Step 3: Cross multiply
    53,928.80x = 80,720.40 × 28,907.36
  4. Step 4: Simplify right side
    53,928.80x = 2,333,413,662.14
  5. Step 5: Solve for x
    x = 2,333,413,662.14/53,928.80
  6. Step 6: Final answer
    x = 43,268.41

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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.