Home / 47,690.85-65,803.82-30,668.43

Finding the Fourth Proportional to 47,690.85, 65,803.82 and 30,668.43

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Solution

The fourth proportional to 47,690.85, 65,803.82 and 30,668.43 is: 42,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,690.85 : 65,803.82 = 30,668.43 : x
  2. Step 2: Convert to fraction form
    47,690.85/65,803.82 = 30,668.43/x
  3. Step 3: Cross multiply
    47,690.85x = 65,803.82 × 30,668.43
  4. Step 4: Simplify right side
    47,690.85x = 2,018,099,694.06
  5. Step 5: Solve for x
    x = 2,018,099,694.06/47,690.85
  6. Step 6: Final answer
    x = 42,316.29

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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.