Home / 43,208.20-64,812.30-12,043.45

Finding the Fourth Proportional to 43,208.20, 64,812.30 and 12,043.45

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Solution

The fourth proportional to 43,208.20, 64,812.30 and 12,043.45 is: 18,065.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,208.20 : 64,812.30 = 12,043.45 : x
  2. Step 2: Convert to fraction form
    43,208.20/64,812.30 = 12,043.45/x
  3. Step 3: Cross multiply
    43,208.20x = 64,812.30 × 12,043.45
  4. Step 4: Simplify right side
    43,208.20x = 780,563,694.44
  5. Step 5: Solve for x
    x = 780,563,694.44/43,208.20
  6. Step 6: Final answer
    x = 18,065.18

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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.