Home / 47,919.42-66,170.39-30,045.15

Finding the Fourth Proportional to 47,919.42, 66,170.39 and 30,045.15

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Solution

The fourth proportional to 47,919.42, 66,170.39 and 30,045.15 is: 41,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,919.42 : 66,170.39 = 30,045.15 : x
  2. Step 2: Convert to fraction form
    47,919.42/66,170.39 = 30,045.15/x
  3. Step 3: Cross multiply
    47,919.42x = 66,170.39 × 30,045.15
  4. Step 4: Simplify right side
    47,919.42x = 1,988,099,142.88
  5. Step 5: Solve for x
    x = 1,988,099,142.88/47,919.42
  6. Step 6: Final answer
    x = 41,488.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.