Home / 66,903.30-100,309.32-31,846.50

Finding the Fourth Proportional to 66,903.30, 100,309.32 and 31,846.50

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Solution

The fourth proportional to 66,903.30, 100,309.32 and 31,846.50 is: 47,748.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,903.30 : 100,309.32 = 31,846.50 : x
  2. Step 2: Convert to fraction form
    66,903.30/100,309.32 = 31,846.50/x
  3. Step 3: Cross multiply
    66,903.30x = 100,309.32 × 31,846.50
  4. Step 4: Simplify right side
    66,903.30x = 3,194,500,759.38
  5. Step 5: Solve for x
    x = 3,194,500,759.38/66,903.30
  6. Step 6: Final answer
    x = 47,748.03

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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.