Home / 75,671.25-104,429.57-42,137.25

Finding the Fourth Proportional to 75,671.25, 104,429.57 and 42,137.25

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Solution

The fourth proportional to 75,671.25, 104,429.57 and 42,137.25 is: 58,151.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,671.25 : 104,429.57 = 42,137.25 : x
  2. Step 2: Convert to fraction form
    75,671.25/104,429.57 = 42,137.25/x
  3. Step 3: Cross multiply
    75,671.25x = 104,429.57 × 42,137.25
  4. Step 4: Simplify right side
    75,671.25x = 4,400,374,687.80
  5. Step 5: Solve for x
    x = 4,400,374,687.80/75,671.25
  6. Step 6: Final answer
    x = 58,151.21

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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.