Home / 43,660.20-65,490.30-31,996.20

Finding the Fourth Proportional to 43,660.20, 65,490.30 and 31,996.20

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Solution

The fourth proportional to 43,660.20, 65,490.30 and 31,996.20 is: 47,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,660.20 : 65,490.30 = 31,996.20 : x
  2. Step 2: Convert to fraction form
    43,660.20/65,490.30 = 31,996.20/x
  3. Step 3: Cross multiply
    43,660.20x = 65,490.30 × 31,996.20
  4. Step 4: Simplify right side
    43,660.20x = 2,095,440,736.86
  5. Step 5: Solve for x
    x = 2,095,440,736.86/43,660.20
  6. Step 6: Final answer
    x = 47,994.30

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1.5x scale

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.