Home / 53,481.09-73,811.79-30,815.76

Finding the Fourth Proportional to 53,481.09, 73,811.79 and 30,815.76

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Solution

The fourth proportional to 53,481.09, 73,811.79 and 30,815.76 is: 42,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,481.09 : 73,811.79 = 30,815.76 : x
  2. Step 2: Convert to fraction form
    53,481.09/73,811.79 = 30,815.76/x
  3. Step 3: Cross multiply
    53,481.09x = 73,811.79 × 30,815.76
  4. Step 4: Simplify right side
    53,481.09x = 2,274,566,405.81
  5. Step 5: Solve for x
    x = 2,274,566,405.81/53,481.09
  6. Step 6: Final answer
    x = 42,530.29

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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.