Home / 73,519.11-110,278.13-20,928.51

Finding the Fourth Proportional to 73,519.11, 110,278.13 and 20,928.51

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Solution

The fourth proportional to 73,519.11, 110,278.13 and 20,928.51 is: 31,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,519.11 : 110,278.13 = 20,928.51 : x
  2. Step 2: Convert to fraction form
    73,519.11/110,278.13 = 20,928.51/x
  3. Step 3: Cross multiply
    73,519.11x = 110,278.13 × 20,928.51
  4. Step 4: Simplify right side
    73,519.11x = 2,307,956,841.84
  5. Step 5: Solve for x
    x = 2,307,956,841.84/73,519.11
  6. Step 6: Final answer
    x = 31,392.61

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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.