Home / 72,729.09-100,335.24-44,418.51

Finding the Fourth Proportional to 72,729.09, 100,335.24 and 44,418.51

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Solution

The fourth proportional to 72,729.09, 100,335.24 and 44,418.51 is: 61,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,729.09 : 100,335.24 = 44,418.51 : x
  2. Step 2: Convert to fraction form
    72,729.09/100,335.24 = 44,418.51/x
  3. Step 3: Cross multiply
    72,729.09x = 100,335.24 × 44,418.51
  4. Step 4: Simplify right side
    72,729.09x = 4,456,741,861.29
  5. Step 5: Solve for x
    x = 4,456,741,861.29/72,729.09
  6. Step 6: Final answer
    x = 61,278.67

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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.