Home / 45,362.09-68,043.14-12,080.51

Finding the Fourth Proportional to 45,362.09, 68,043.14 and 12,080.51

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Solution

The fourth proportional to 45,362.09, 68,043.14 and 12,080.51 is: 18,120.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,362.09 : 68,043.14 = 12,080.51 : x
  2. Step 2: Convert to fraction form
    45,362.09/68,043.14 = 12,080.51/x
  3. Step 3: Cross multiply
    45,362.09x = 68,043.14 × 12,080.51
  4. Step 4: Simplify right side
    45,362.09x = 821,995,432.58
  5. Step 5: Solve for x
    x = 821,995,432.58/45,362.09
  6. Step 6: Final answer
    x = 18,120.76

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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.