Home / 45,904.90-68,857.66-12,628.48

Finding the Fourth Proportional to 45,904.90, 68,857.66 and 12,628.48

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Solution

The fourth proportional to 45,904.90, 68,857.66 and 12,628.48 is: 18,942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,904.90 : 68,857.66 = 12,628.48 : x
  2. Step 2: Convert to fraction form
    45,904.90/68,857.66 = 12,628.48/x
  3. Step 3: Cross multiply
    45,904.90x = 68,857.66 × 12,628.48
  4. Step 4: Simplify right side
    45,904.90x = 869,567,582.16
  5. Step 5: Solve for x
    x = 869,567,582.16/45,904.90
  6. Step 6: Final answer
    x = 18,942.81

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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.