Home / 79,651.23-109,917.84-43,840.47

Finding the Fourth Proportional to 79,651.23, 109,917.84 and 43,840.47

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Solution

The fourth proportional to 79,651.23, 109,917.84 and 43,840.47 is: 60,499.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,651.23 : 109,917.84 = 43,840.47 : x
  2. Step 2: Convert to fraction form
    79,651.23/109,917.84 = 43,840.47/x
  3. Step 3: Cross multiply
    79,651.23x = 109,917.84 × 43,840.47
  4. Step 4: Simplify right side
    79,651.23x = 4,818,849,766.98
  5. Step 5: Solve for x
    x = 4,818,849,766.98/79,651.23
  6. Step 6: Final answer
    x = 60,499.38

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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.