Home / 54,647.20-81,776.40-37,928.80

Finding the Fourth Proportional to 54,647.20, 81,776.40 and 37,928.80

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Solution

The fourth proportional to 54,647.20, 81,776.40 and 37,928.80 is: 56,758.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,647.20 : 81,776.40 = 37,928.80 : x
  2. Step 2: Convert to fraction form
    54,647.20/81,776.40 = 37,928.80/x
  3. Step 3: Cross multiply
    54,647.20x = 81,776.40 × 37,928.80
  4. Step 4: Simplify right side
    54,647.20x = 3,101,680,720.32
  5. Step 5: Solve for x
    x = 3,101,680,720.32/54,647.20
  6. Step 6: Final answer
    x = 56,758.27

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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.