Home / 43,267.80-64,912.50-12,102.78

Finding the Fourth Proportional to 43,267.80, 64,912.50 and 12,102.78

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Solution

The fourth proportional to 43,267.80, 64,912.50 and 12,102.78 is: 18,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,267.80 : 64,912.50 = 12,102.78 : x
  2. Step 2: Convert to fraction form
    43,267.80/64,912.50 = 12,102.78/x
  3. Step 3: Cross multiply
    43,267.80x = 64,912.50 × 12,102.78
  4. Step 4: Simplify right side
    43,267.80x = 785,621,706.75
  5. Step 5: Solve for x
    x = 785,621,706.75/43,267.80
  6. Step 6: Final answer
    x = 18,157.19

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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.