Home / 99,787.25-149,601.37-57,619.46

Finding the Fourth Proportional to 99,787.25, 149,601.37 and 57,619.46

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Solution

The fourth proportional to 99,787.25, 149,601.37 and 57,619.46 is: 86,383.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,787.25 : 149,601.37 = 57,619.46 : x
  2. Step 2: Convert to fraction form
    99,787.25/149,601.37 = 57,619.46/x
  3. Step 3: Cross multiply
    99,787.25x = 149,601.37 × 57,619.46
  4. Step 4: Simplify right side
    99,787.25x = 8,619,950,154.66
  5. Step 5: Solve for x
    x = 8,619,950,154.66/99,787.25
  6. Step 6: Final answer
    x = 86,383.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.