Home / 75,093.24-112,768.47-66,678.66

Finding the Fourth Proportional to 75,093.24, 112,768.47 and 66,678.66

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Solution

The fourth proportional to 75,093.24, 112,768.47 and 66,678.66 is: 100,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,093.24 : 112,768.47 = 66,678.66 : x
  2. Step 2: Convert to fraction form
    75,093.24/112,768.47 = 66,678.66/x
  3. Step 3: Cross multiply
    75,093.24x = 112,768.47 × 66,678.66
  4. Step 4: Simplify right side
    75,093.24x = 7,519,250,469.85
  5. Step 5: Solve for x
    x = 7,519,250,469.85/75,093.24
  6. Step 6: Final answer
    x = 100,132.19

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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.