Home / 81,650.05-112,668.36-45,844

Finding the Fourth Proportional to 81,650.05, 112,668.36 and 45,844

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Solution

The fourth proportional to 81,650.05, 112,668.36 and 45,844 is: 63,259.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,650.05 : 112,668.36 = 45,844 : x
  2. Step 2: Convert to fraction form
    81,650.05/112,668.36 = 45,844/x
  3. Step 3: Cross multiply
    81,650.05x = 112,668.36 × 45,844
  4. Step 4: Simplify right side
    81,650.05x = 5,165,168,295.84
  5. Step 5: Solve for x
    x = 5,165,168,295.84/81,650.05
  6. Step 6: Final answer
    x = 63,259.83

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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.