Home / 75,845.25-104,669.73-42,311.25

Finding the Fourth Proportional to 75,845.25, 104,669.73 and 42,311.25

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Solution

The fourth proportional to 75,845.25, 104,669.73 and 42,311.25 is: 58,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,845.25 : 104,669.73 = 42,311.25 : x
  2. Step 2: Convert to fraction form
    75,845.25/104,669.73 = 42,311.25/x
  3. Step 3: Cross multiply
    75,845.25x = 104,669.73 × 42,311.25
  4. Step 4: Simplify right side
    75,845.25x = 4,428,707,113.46
  5. Step 5: Solve for x
    x = 4,428,707,113.46/75,845.25
  6. Step 6: Final answer
    x = 58,391.36

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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.