Home / 66,133.97-99,221.46-19,386.84

Finding the Fourth Proportional to 66,133.97, 99,221.46 and 19,386.84

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Solution

The fourth proportional to 66,133.97, 99,221.46 and 19,386.84 is: 29,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,133.97 : 99,221.46 = 19,386.84 : x
  2. Step 2: Convert to fraction form
    66,133.97/99,221.46 = 19,386.84/x
  3. Step 3: Cross multiply
    66,133.97x = 99,221.46 × 19,386.84
  4. Step 4: Simplify right side
    66,133.97x = 1,923,590,868.97
  5. Step 5: Solve for x
    x = 1,923,590,868.97/66,133.97
  6. Step 6: Final answer
    x = 29,086.28

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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.