Home / 76,993.09-106,263.29-74,969.42

Finding the Fourth Proportional to 76,993.09, 106,263.29 and 74,969.42

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Solution

The fourth proportional to 76,993.09, 106,263.29 and 74,969.42 is: 103,470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,993.09 : 106,263.29 = 74,969.42 : x
  2. Step 2: Convert to fraction form
    76,993.09/106,263.29 = 74,969.42/x
  3. Step 3: Cross multiply
    76,993.09x = 106,263.29 × 74,969.42
  4. Step 4: Simplify right side
    76,993.09x = 7,966,496,874.70
  5. Step 5: Solve for x
    x = 7,966,496,874.70/76,993.09
  6. Step 6: Final answer
    x = 103,470.29

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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.