Home / 66,584.16-91,905.84-38,309.76

Finding the Fourth Proportional to 66,584.16, 91,905.84 and 38,309.76

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Solution

The fourth proportional to 66,584.16, 91,905.84 and 38,309.76 is: 52,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,584.16 : 91,905.84 = 38,309.76 : x
  2. Step 2: Convert to fraction form
    66,584.16/91,905.84 = 38,309.76/x
  3. Step 3: Cross multiply
    66,584.16x = 91,905.84 × 38,309.76
  4. Step 4: Simplify right side
    66,584.16x = 3,520,890,673.00
  5. Step 5: Solve for x
    x = 3,520,890,673.00/66,584.16
  6. Step 6: Final answer
    x = 52,878.80

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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.