Home / 45,966.48-68,914.62-20,989.19

Finding the Fourth Proportional to 45,966.48, 68,914.62 and 20,989.19

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Solution

The fourth proportional to 45,966.48, 68,914.62 and 20,989.19 is: 31,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,966.48 : 68,914.62 = 20,989.19 : x
  2. Step 2: Convert to fraction form
    45,966.48/68,914.62 = 20,989.19/x
  3. Step 3: Cross multiply
    45,966.48x = 68,914.62 × 20,989.19
  4. Step 4: Simplify right side
    45,966.48x = 1,446,461,708.38
  5. Step 5: Solve for x
    x = 1,446,461,708.38/45,966.48
  6. Step 6: Final answer
    x = 31,467.75

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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.