Home / 66,529.82-91,812.02-39,687.84

Finding the Fourth Proportional to 66,529.82, 91,812.02 and 39,687.84

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Solution

The fourth proportional to 66,529.82, 91,812.02 and 39,687.84 is: 54,769.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,529.82 : 91,812.02 = 39,687.84 : x
  2. Step 2: Convert to fraction form
    66,529.82/91,812.02 = 39,687.84/x
  3. Step 3: Cross multiply
    66,529.82x = 91,812.02 × 39,687.84
  4. Step 4: Simplify right side
    66,529.82x = 3,643,820,561.40
  5. Step 5: Solve for x
    x = 3,643,820,561.40/66,529.82
  6. Step 6: Final answer
    x = 54,769.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.