Home / 65,512.20-90,406.37-37,217.88

Finding the Fourth Proportional to 65,512.20, 90,406.37 and 37,217.88

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Solution

The fourth proportional to 65,512.20, 90,406.37 and 37,217.88 is: 51,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,512.20 : 90,406.37 = 37,217.88 : x
  2. Step 2: Convert to fraction form
    65,512.20/90,406.37 = 37,217.88/x
  3. Step 3: Cross multiply
    65,512.20x = 90,406.37 × 37,217.88
  4. Step 4: Simplify right side
    65,512.20x = 3,364,733,243.81
  5. Step 5: Solve for x
    x = 3,364,733,243.81/65,512.20
  6. Step 6: Final answer
    x = 51,360.41

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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.