Home / 81,052.49-121,329.62-69,095.07

Finding the Fourth Proportional to 81,052.49, 121,329.62 and 69,095.07

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Solution

The fourth proportional to 81,052.49, 121,329.62 and 69,095.07 is: 103,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,052.49 : 121,329.62 = 69,095.07 : x
  2. Step 2: Convert to fraction form
    81,052.49/121,329.62 = 69,095.07/x
  3. Step 3: Cross multiply
    81,052.49x = 121,329.62 × 69,095.07
  4. Step 4: Simplify right side
    81,052.49x = 8,383,278,241.50
  5. Step 5: Solve for x
    x = 8,383,278,241.50/81,052.49
  6. Step 6: Final answer
    x = 103,430.23

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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.