Home / 81,100.45-121,650.62-59,054.07

Finding the Fourth Proportional to 81,100.45, 121,650.62 and 59,054.07

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Solution

The fourth proportional to 81,100.45, 121,650.62 and 59,054.07 is: 88,581.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,100.45 : 121,650.62 = 59,054.07 : x
  2. Step 2: Convert to fraction form
    81,100.45/121,650.62 = 59,054.07/x
  3. Step 3: Cross multiply
    81,100.45x = 121,650.62 × 59,054.07
  4. Step 4: Simplify right side
    81,100.45x = 7,183,963,933.75
  5. Step 5: Solve for x
    x = 7,183,963,933.75/81,100.45
  6. Step 6: Final answer
    x = 88,581.06

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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.