Home / 65,819.88-90,831.06-35,605.10

Finding the Fourth Proportional to 65,819.88, 90,831.06 and 35,605.10

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Solution

The fourth proportional to 65,819.88, 90,831.06 and 35,605.10 is: 49,134.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,819.88 : 90,831.06 = 35,605.10 : x
  2. Step 2: Convert to fraction form
    65,819.88/90,831.06 = 35,605.10/x
  3. Step 3: Cross multiply
    65,819.88x = 90,831.06 × 35,605.10
  4. Step 4: Simplify right side
    65,819.88x = 3,234,048,974.41
  5. Step 5: Solve for x
    x = 3,234,048,974.41/65,819.88
  6. Step 6: Final answer
    x = 49,134.84

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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.