Home / 66,535.68-99,817.87-19,150.45

Finding the Fourth Proportional to 66,535.68, 99,817.87 and 19,150.45

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Solution

The fourth proportional to 66,535.68, 99,817.87 and 19,150.45 is: 28,729.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,535.68 : 99,817.87 = 19,150.45 : x
  2. Step 2: Convert to fraction form
    66,535.68/99,817.87 = 19,150.45/x
  3. Step 3: Cross multiply
    66,535.68x = 99,817.87 × 19,150.45
  4. Step 4: Simplify right side
    66,535.68x = 1,911,557,128.54
  5. Step 5: Solve for x
    x = 1,911,557,128.54/66,535.68
  6. Step 6: Final answer
    x = 28,729.81

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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.