Home / 47,311.75-65,291.16-30,573.91

Finding the Fourth Proportional to 47,311.75, 65,291.16 and 30,573.91

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Solution

The fourth proportional to 47,311.75, 65,291.16 and 30,573.91 is: 42,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,311.75 : 65,291.16 = 30,573.91 : x
  2. Step 2: Convert to fraction form
    47,311.75/65,291.16 = 30,573.91/x
  3. Step 3: Cross multiply
    47,311.75x = 65,291.16 × 30,573.91
  4. Step 4: Simplify right side
    47,311.75x = 1,996,206,049.64
  5. Step 5: Solve for x
    x = 1,996,206,049.64/47,311.75
  6. Step 6: Final answer
    x = 42,192.61

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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.