Home / 76,969.44-106,166.70-45,107.28

Finding the Fourth Proportional to 76,969.44, 106,166.70 and 45,107.28

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Solution

The fourth proportional to 76,969.44, 106,166.70 and 45,107.28 is: 62,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,969.44 : 106,166.70 = 45,107.28 : x
  2. Step 2: Convert to fraction form
    76,969.44/106,166.70 = 45,107.28/x
  3. Step 3: Cross multiply
    76,969.44x = 106,166.70 × 45,107.28
  4. Step 4: Simplify right side
    76,969.44x = 4,788,891,063.58
  5. Step 5: Solve for x
    x = 4,788,891,063.58/76,969.44
  6. Step 6: Final answer
    x = 62,218.08

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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.