Home / 66,928.48-100,405.00-54,558.26

Finding the Fourth Proportional to 66,928.48, 100,405.00 and 54,558.26

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Solution

The fourth proportional to 66,928.48, 100,405.00 and 54,558.26 is: 81,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928.48 : 100,405.00 = 54,558.26 : x
  2. Step 2: Convert to fraction form
    66,928.48/100,405.00 = 54,558.26/x
  3. Step 3: Cross multiply
    66,928.48x = 100,405.00 × 54,558.26
  4. Step 4: Simplify right side
    66,928.48x = 5,477,922,037.99
  5. Step 5: Solve for x
    x = 5,477,922,037.99/66,928.48
  6. Step 6: Final answer
    x = 81,847.40

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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.