Home / 45,696.35-68,544.43-12,421.25

Finding the Fourth Proportional to 45,696.35, 68,544.43 and 12,421.25

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Solution

The fourth proportional to 45,696.35, 68,544.43 and 12,421.25 is: 18,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,696.35 : 68,544.43 = 12,421.25 : x
  2. Step 2: Convert to fraction form
    45,696.35/68,544.43 = 12,421.25/x
  3. Step 3: Cross multiply
    45,696.35x = 68,544.43 × 12,421.25
  4. Step 4: Simplify right side
    45,696.35x = 851,407,384.40
  5. Step 5: Solve for x
    x = 851,407,384.40/45,696.35
  6. Step 6: Final answer
    x = 18,631.85

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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.