Home / 66,172.40-99,237.26-21,788.60

Finding the Fourth Proportional to 66,172.40, 99,237.26 and 21,788.60

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Solution

The fourth proportional to 66,172.40, 99,237.26 and 21,788.60 is: 32,675.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,172.40 : 99,237.26 = 21,788.60 : x
  2. Step 2: Convert to fraction form
    66,172.40/99,237.26 = 21,788.60/x
  3. Step 3: Cross multiply
    66,172.40x = 99,237.26 × 21,788.60
  4. Step 4: Simplify right side
    66,172.40x = 2,162,240,963.24
  5. Step 5: Solve for x
    x = 2,162,240,963.24/66,172.40
  6. Step 6: Final answer
    x = 32,675.87

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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.