Home / 75,110.90-103,664.43-42,845.36

Finding the Fourth Proportional to 75,110.90, 103,664.43 and 42,845.36

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Solution

The fourth proportional to 75,110.90, 103,664.43 and 42,845.36 is: 59,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,110.90 : 103,664.43 = 42,845.36 : x
  2. Step 2: Convert to fraction form
    75,110.90/103,664.43 = 42,845.36/x
  3. Step 3: Cross multiply
    75,110.90x = 103,664.43 × 42,845.36
  4. Step 4: Simplify right side
    75,110.90x = 4,441,539,822.54
  5. Step 5: Solve for x
    x = 4,441,539,822.54/75,110.90
  6. Step 6: Final answer
    x = 59,133.09

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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.