Home / 66,456.20-99,662.70-22,075.40

Finding the Fourth Proportional to 66,456.20, 99,662.70 and 22,075.40

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Solution

The fourth proportional to 66,456.20, 99,662.70 and 22,075.40 is: 33,105.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,456.20 : 99,662.70 = 22,075.40 : x
  2. Step 2: Convert to fraction form
    66,456.20/99,662.70 = 22,075.40/x
  3. Step 3: Cross multiply
    66,456.20x = 99,662.70 × 22,075.40
  4. Step 4: Simplify right side
    66,456.20x = 2,200,093,967.58
  5. Step 5: Solve for x
    x = 2,200,093,967.58/66,456.20
  6. Step 6: Final answer
    x = 33,105.92

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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.