Home / 48,443.40-72,669.32-13,383.09

Finding the Fourth Proportional to 48,443.40, 72,669.32 and 13,383.09

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Solution

The fourth proportional to 48,443.40, 72,669.32 and 13,383.09 is: 20,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,443.40 : 72,669.32 = 13,383.09 : x
  2. Step 2: Convert to fraction form
    48,443.40/72,669.32 = 13,383.09/x
  3. Step 3: Cross multiply
    48,443.40x = 72,669.32 × 13,383.09
  4. Step 4: Simplify right side
    48,443.40x = 972,540,049.80
  5. Step 5: Solve for x
    x = 972,540,049.80/48,443.40
  6. Step 6: Final answer
    x = 20,075.80

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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.