Home / 66,438.09-99,647.73-19,057.23

Finding the Fourth Proportional to 66,438.09, 99,647.73 and 19,057.23

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Solution

The fourth proportional to 66,438.09, 99,647.73 and 19,057.23 is: 28,583.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,438.09 : 99,647.73 = 19,057.23 : x
  2. Step 2: Convert to fraction form
    66,438.09/99,647.73 = 19,057.23/x
  3. Step 3: Cross multiply
    66,438.09x = 99,647.73 × 19,057.23
  4. Step 4: Simplify right side
    66,438.09x = 1,899,009,709.59
  5. Step 5: Solve for x
    x = 1,899,009,709.59/66,438.09
  6. Step 6: Final answer
    x = 28,583.15

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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.