Home / 81,651.24-112,685.22-45,843.60

Finding the Fourth Proportional to 81,651.24, 112,685.22 and 45,843.60

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Solution

The fourth proportional to 81,651.24, 112,685.22 and 45,843.60 is: 63,267.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651.24 : 112,685.22 = 45,843.60 : x
  2. Step 2: Convert to fraction form
    81,651.24/112,685.22 = 45,843.60/x
  3. Step 3: Cross multiply
    81,651.24x = 112,685.22 × 45,843.60
  4. Step 4: Simplify right side
    81,651.24x = 5,165,896,151.59
  5. Step 5: Solve for x
    x = 5,165,896,151.59/81,651.24
  6. Step 6: Final answer
    x = 63,267.82

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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.