Home / 84,485-126,622.16-73,929.96

Finding the Fourth Proportional to 84,485, 126,622.16 and 73,929.96

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Solution

The fourth proportional to 84,485, 126,622.16 and 73,929.96 is: 110,802.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,485 : 126,622.16 = 73,929.96 : x
  2. Step 2: Convert to fraction form
    84,485/126,622.16 = 73,929.96/x
  3. Step 3: Cross multiply
    84,485x = 126,622.16 × 73,929.96
  4. Step 4: Simplify right side
    84,485x = 9,361,171,223.91
  5. Step 5: Solve for x
    x = 9,361,171,223.91/84,485
  6. Step 6: Final answer
    x = 110,802.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.