Home / 45,269-67,905.32-21,564.36

Finding the Fourth Proportional to 45,269, 67,905.32 and 21,564.36

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Solution

The fourth proportional to 45,269, 67,905.32 and 21,564.36 is: 32,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,269 : 67,905.32 = 21,564.36 : x
  2. Step 2: Convert to fraction form
    45,269/67,905.32 = 21,564.36/x
  3. Step 3: Cross multiply
    45,269x = 67,905.32 × 21,564.36
  4. Step 4: Simplify right side
    45,269x = 1,464,334,766.40
  5. Step 5: Solve for x
    x = 1,464,334,766.40/45,269
  6. Step 6: Final answer
    x = 32,347.41

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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.