Home / 45,407.78-68,122.60-14,243.03

Finding the Fourth Proportional to 45,407.78, 68,122.60 and 14,243.03

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Solution

The fourth proportional to 45,407.78, 68,122.60 and 14,243.03 is: 21,367.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,407.78 : 68,122.60 = 14,243.03 : x
  2. Step 2: Convert to fraction form
    45,407.78/68,122.60 = 14,243.03/x
  3. Step 3: Cross multiply
    45,407.78x = 68,122.60 × 14,243.03
  4. Step 4: Simplify right side
    45,407.78x = 970,272,068.99
  5. Step 5: Solve for x
    x = 970,272,068.99/45,407.78
  6. Step 6: Final answer
    x = 21,367.97

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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.