Home / 80,093.48-120,189.63-40,678.88

Finding the Fourth Proportional to 80,093.48, 120,189.63 and 40,678.88

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Solution

The fourth proportional to 80,093.48, 120,189.63 and 40,678.88 is: 61,043.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,093.48 : 120,189.63 = 40,678.88 : x
  2. Step 2: Convert to fraction form
    80,093.48/120,189.63 = 40,678.88/x
  3. Step 3: Cross multiply
    80,093.48x = 120,189.63 × 40,678.88
  4. Step 4: Simplify right side
    80,093.48x = 4,889,179,536.01
  5. Step 5: Solve for x
    x = 4,889,179,536.01/80,093.48
  6. Step 6: Final answer
    x = 61,043.41

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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.