Home / 75,209.76-103,790.80-41,215.98

Finding the Fourth Proportional to 75,209.76, 103,790.80 and 41,215.98

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Solution

The fourth proportional to 75,209.76, 103,790.80 and 41,215.98 is: 56,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,209.76 : 103,790.80 = 41,215.98 : x
  2. Step 2: Convert to fraction form
    75,209.76/103,790.80 = 41,215.98/x
  3. Step 3: Cross multiply
    75,209.76x = 103,790.80 × 41,215.98
  4. Step 4: Simplify right side
    75,209.76x = 4,277,839,977.72
  5. Step 5: Solve for x
    x = 4,277,839,977.72/75,209.76
  6. Step 6: Final answer
    x = 56,878.79

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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.