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Finding the Fourth Proportional to 75,603.79, 104,315.43 and 63,550.09

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Solution

The fourth proportional to 75,603.79, 104,315.43 and 63,550.09 is: 87,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,603.79 : 104,315.43 = 63,550.09 : x
  2. Step 2: Convert to fraction form
    75,603.79/104,315.43 = 63,550.09/x
  3. Step 3: Cross multiply
    75,603.79x = 104,315.43 × 63,550.09
  4. Step 4: Simplify right side
    75,603.79x = 6,629,254,964.89
  5. Step 5: Solve for x
    x = 6,629,254,964.89/75,603.79
  6. Step 6: Final answer
    x = 87,684.16

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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.