Home / 65,904.58-90,947.86-35,689.21

Finding the Fourth Proportional to 65,904.58, 90,947.86 and 35,689.21

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Solution

The fourth proportional to 65,904.58, 90,947.86 and 35,689.21 is: 49,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.58 : 90,947.86 = 35,689.21 : x
  2. Step 2: Convert to fraction form
    65,904.58/90,947.86 = 35,689.21/x
  3. Step 3: Cross multiply
    65,904.58x = 90,947.86 × 35,689.21
  4. Step 4: Simplify right side
    65,904.58x = 3,245,856,958.00
  5. Step 5: Solve for x
    x = 3,245,856,958.00/65,904.58
  6. Step 6: Final answer
    x = 49,250.85

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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.