Home / 45,207.36-67,810.32-12,375.36

Finding the Fourth Proportional to 45,207.36, 67,810.32 and 12,375.36

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Solution

The fourth proportional to 45,207.36, 67,810.32 and 12,375.36 is: 18,562.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,207.36 : 67,810.32 = 12,375.36 : x
  2. Step 2: Convert to fraction form
    45,207.36/67,810.32 = 12,375.36/x
  3. Step 3: Cross multiply
    45,207.36x = 67,810.32 × 12,375.36
  4. Step 4: Simplify right side
    45,207.36x = 839,177,121.72
  5. Step 5: Solve for x
    x = 839,177,121.72/45,207.36
  6. Step 6: Final answer
    x = 18,562.84

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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.