Home / 48,102.12-72,153.26-20,021.80

Finding the Fourth Proportional to 48,102.12, 72,153.26 and 20,021.80

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Solution

The fourth proportional to 48,102.12, 72,153.26 and 20,021.80 is: 30,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,102.12 : 72,153.26 = 20,021.80 : x
  2. Step 2: Convert to fraction form
    48,102.12/72,153.26 = 20,021.80/x
  3. Step 3: Cross multiply
    48,102.12x = 72,153.26 × 20,021.80
  4. Step 4: Simplify right side
    48,102.12x = 1,444,638,141.07
  5. Step 5: Solve for x
    x = 1,444,638,141.07/48,102.12
  6. Step 6: Final answer
    x = 30,032.73

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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.