Home / 45,420.91-68,111.92-15,829.99

Finding the Fourth Proportional to 45,420.91, 68,111.92 and 15,829.99

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Solution

The fourth proportional to 45,420.91, 68,111.92 and 15,829.99 is: 23,738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.91 : 68,111.92 = 15,829.99 : x
  2. Step 2: Convert to fraction form
    45,420.91/68,111.92 = 15,829.99/x
  3. Step 3: Cross multiply
    45,420.91x = 68,111.92 × 15,829.99
  4. Step 4: Simplify right side
    45,420.91x = 1,078,211,012.48
  5. Step 5: Solve for x
    x = 1,078,211,012.48/45,420.91
  6. Step 6: Final answer
    x = 23,738.21

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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.