Home / 47,811.24-66,009-30,821.52

Finding the Fourth Proportional to 47,811.24, 66,009 and 30,821.52

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Solution

The fourth proportional to 47,811.24, 66,009 and 30,821.52 is: 42,552.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,811.24 : 66,009 = 30,821.52 : x
  2. Step 2: Convert to fraction form
    47,811.24/66,009 = 30,821.52/x
  3. Step 3: Cross multiply
    47,811.24x = 66,009 × 30,821.52
  4. Step 4: Simplify right side
    47,811.24x = 2,034,497,713.68
  5. Step 5: Solve for x
    x = 2,034,497,713.68/47,811.24
  6. Step 6: Final answer
    x = 42,552.71

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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.