Home / 45,321.60-68,113.44-42,171.84

Finding the Fourth Proportional to 45,321.60, 68,113.44 and 42,171.84

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Solution

The fourth proportional to 45,321.60, 68,113.44 and 42,171.84 is: 63,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,321.60 : 68,113.44 = 42,171.84 : x
  2. Step 2: Convert to fraction form
    45,321.60/68,113.44 = 42,171.84/x
  3. Step 3: Cross multiply
    45,321.60x = 68,113.44 × 42,171.84
  4. Step 4: Simplify right side
    45,321.60x = 2,872,469,093.53
  5. Step 5: Solve for x
    x = 2,872,469,093.53/45,321.60
  6. Step 6: Final answer
    x = 63,379.69

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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.