Home / 84,015.72-115,998.66-58,821.48

Finding the Fourth Proportional to 84,015.72, 115,998.66 and 58,821.48

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Solution

The fourth proportional to 84,015.72, 115,998.66 and 58,821.48 is: 81,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,015.72 : 115,998.66 = 58,821.48 : x
  2. Step 2: Convert to fraction form
    84,015.72/115,998.66 = 58,821.48/x
  3. Step 3: Cross multiply
    84,015.72x = 115,998.66 × 58,821.48
  4. Step 4: Simplify right side
    84,015.72x = 6,823,212,859.22
  5. Step 5: Solve for x
    x = 6,823,212,859.22/84,015.72
  6. Step 6: Final answer
    x = 81,213.53

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1.5x scale

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.