Home / 45,855.67-68,783.60-12,576.21

Finding the Fourth Proportional to 45,855.67, 68,783.60 and 12,576.21

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Solution

The fourth proportional to 45,855.67, 68,783.60 and 12,576.21 is: 18,864.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,855.67 : 68,783.60 = 12,576.21 : x
  2. Step 2: Convert to fraction form
    45,855.67/68,783.60 = 12,576.21/x
  3. Step 3: Cross multiply
    45,855.67x = 68,783.60 × 12,576.21
  4. Step 4: Simplify right side
    45,855.67x = 865,037,029.60
  5. Step 5: Solve for x
    x = 865,037,029.60/45,855.67
  6. Step 6: Final answer
    x = 18,864.34

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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.