Home / 65,811.35-90,819.32-35,596.64

Finding the Fourth Proportional to 65,811.35, 90,819.32 and 35,596.64

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Solution

The fourth proportional to 65,811.35, 90,819.32 and 35,596.64 is: 49,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,811.35 : 90,819.32 = 35,596.64 : x
  2. Step 2: Convert to fraction form
    65,811.35/90,819.32 = 35,596.64/x
  3. Step 3: Cross multiply
    65,811.35x = 90,819.32 × 35,596.64
  4. Step 4: Simplify right side
    65,811.35x = 3,232,862,007.01
  5. Step 5: Solve for x
    x = 3,232,862,007.01/65,811.35
  6. Step 6: Final answer
    x = 49,123.17

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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.