Home / 45,989.86-68,989.30-17,912.23

Finding the Fourth Proportional to 45,989.86, 68,989.30 and 17,912.23

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Solution

The fourth proportional to 45,989.86, 68,989.30 and 17,912.23 is: 26,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,989.86 : 68,989.30 = 17,912.23 : x
  2. Step 2: Convert to fraction form
    45,989.86/68,989.30 = 17,912.23/x
  3. Step 3: Cross multiply
    45,989.86x = 68,989.30 × 17,912.23
  4. Step 4: Simplify right side
    45,989.86x = 1,235,752,209.14
  5. Step 5: Solve for x
    x = 1,235,752,209.14/45,989.86
  6. Step 6: Final answer
    x = 26,870.10

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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.