Home / 66,087.03-99,131.37-19,340.85

Finding the Fourth Proportional to 66,087.03, 99,131.37 and 19,340.85

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Solution

The fourth proportional to 66,087.03, 99,131.37 and 19,340.85 is: 29,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.03 : 99,131.37 = 19,340.85 : x
  2. Step 2: Convert to fraction form
    66,087.03/99,131.37 = 19,340.85/x
  3. Step 3: Cross multiply
    66,087.03x = 99,131.37 × 19,340.85
  4. Step 4: Simplify right side
    66,087.03x = 1,917,284,957.46
  5. Step 5: Solve for x
    x = 1,917,284,957.46/66,087.03
  6. Step 6: Final answer
    x = 29,011.52

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1.5x scale

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.