Home / 66,261.75-99,371.42-21,880.23

Finding the Fourth Proportional to 66,261.75, 99,371.42 and 21,880.23

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Solution

The fourth proportional to 66,261.75, 99,371.42 and 21,880.23 is: 32,813.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,261.75 : 99,371.42 = 21,880.23 : x
  2. Step 2: Convert to fraction form
    66,261.75/99,371.42 = 21,880.23/x
  3. Step 3: Cross multiply
    66,261.75x = 99,371.42 × 21,880.23
  4. Step 4: Simplify right side
    66,261.75x = 2,174,269,525.03
  5. Step 5: Solve for x
    x = 2,174,269,525.03/66,261.75
  6. Step 6: Final answer
    x = 32,813.34

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1.5x scale

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.