Home / 60,563.03-90,843.72-21,120

Finding the Fourth Proportional to 60,563.03, 90,843.72 and 21,120

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Solution

The fourth proportional to 60,563.03, 90,843.72 and 21,120 is: 31,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,563.03 : 90,843.72 = 21,120 : x
  2. Step 2: Convert to fraction form
    60,563.03/90,843.72 = 21,120/x
  3. Step 3: Cross multiply
    60,563.03x = 90,843.72 × 21,120
  4. Step 4: Simplify right side
    60,563.03x = 1,918,619,366.40
  5. Step 5: Solve for x
    x = 1,918,619,366.40/60,563.03
  6. Step 6: Final answer
    x = 31,679.71

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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.