Home / 75,209.72-103,815.42-43,391.32

Finding the Fourth Proportional to 75,209.72, 103,815.42 and 43,391.32

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Solution

The fourth proportional to 75,209.72, 103,815.42 and 43,391.32 is: 59,895.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,209.72 : 103,815.42 = 43,391.32 : x
  2. Step 2: Convert to fraction form
    75,209.72/103,815.42 = 43,391.32/x
  3. Step 3: Cross multiply
    75,209.72x = 103,815.42 × 43,391.32
  4. Step 4: Simplify right side
    75,209.72x = 4,504,688,110.15
  5. Step 5: Solve for x
    x = 4,504,688,110.15/75,209.72
  6. Step 6: Final answer
    x = 59,895.03

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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.