Home / 66,075.20-99,125.60-33,243.20

Finding the Fourth Proportional to 66,075.20, 99,125.60 and 33,243.20

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Solution

The fourth proportional to 66,075.20, 99,125.60 and 33,243.20 is: 49,871.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,075.20 : 99,125.60 = 33,243.20 : x
  2. Step 2: Convert to fraction form
    66,075.20/99,125.60 = 33,243.20/x
  3. Step 3: Cross multiply
    66,075.20x = 99,125.60 × 33,243.20
  4. Step 4: Simplify right side
    66,075.20x = 3,295,252,145.92
  5. Step 5: Solve for x
    x = 3,295,252,145.92/66,075.20
  6. Step 6: Final answer
    x = 49,871.24

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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.