Home / 89,231.15-133,859.07-30,083.73

Finding the Fourth Proportional to 89,231.15, 133,859.07 and 30,083.73

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Solution

The fourth proportional to 89,231.15, 133,859.07 and 30,083.73 is: 45,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,231.15 : 133,859.07 = 30,083.73 : x
  2. Step 2: Convert to fraction form
    89,231.15/133,859.07 = 30,083.73/x
  3. Step 3: Cross multiply
    89,231.15x = 133,859.07 × 30,083.73
  4. Step 4: Simplify right side
    89,231.15x = 4,026,980,119.93
  5. Step 5: Solve for x
    x = 4,026,980,119.93/89,231.15
  6. Step 6: Final answer
    x = 45,129.76

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1.5x scale

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.