Home / 65,830.09-90,845.40-35,615.46

Finding the Fourth Proportional to 65,830.09, 90,845.40 and 35,615.46

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Solution

The fourth proportional to 65,830.09, 90,845.40 and 35,615.46 is: 49,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,830.09 : 90,845.40 = 35,615.46 : x
  2. Step 2: Convert to fraction form
    65,830.09/90,845.40 = 35,615.46/x
  3. Step 3: Cross multiply
    65,830.09x = 90,845.40 × 35,615.46
  4. Step 4: Simplify right side
    65,830.09x = 3,235,500,709.88
  5. Step 5: Solve for x
    x = 3,235,500,709.88/65,830.09
  6. Step 6: Final answer
    x = 49,149.27

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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.