Home / 66,410.12-91,643.61-36,194.84

Finding the Fourth Proportional to 66,410.12, 91,643.61 and 36,194.84

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Solution

The fourth proportional to 66,410.12, 91,643.61 and 36,194.84 is: 49,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,410.12 : 91,643.61 = 36,194.84 : x
  2. Step 2: Convert to fraction form
    66,410.12/91,643.61 = 36,194.84/x
  3. Step 3: Cross multiply
    66,410.12x = 91,643.61 × 36,194.84
  4. Step 4: Simplify right side
    66,410.12x = 3,317,025,800.97
  5. Step 5: Solve for x
    x = 3,317,025,800.97/66,410.12
  6. Step 6: Final answer
    x = 49,947.60

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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.