Home / 45,987.25-68,918.50-20,996.32

Finding the Fourth Proportional to 45,987.25, 68,918.50 and 20,996.32

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Solution

The fourth proportional to 45,987.25, 68,918.50 and 20,996.32 is: 31,466.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,987.25 : 68,918.50 = 20,996.32 : x
  2. Step 2: Convert to fraction form
    45,987.25/68,918.50 = 20,996.32/x
  3. Step 3: Cross multiply
    45,987.25x = 68,918.50 × 20,996.32
  4. Step 4: Simplify right side
    45,987.25x = 1,447,034,879.92
  5. Step 5: Solve for x
    x = 1,447,034,879.92/45,987.25
  6. Step 6: Final answer
    x = 31,466.00

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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.