Home / 45,163.20-67,746.72-13,999.04

Finding the Fourth Proportional to 45,163.20, 67,746.72 and 13,999.04

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Solution

The fourth proportional to 45,163.20, 67,746.72 and 13,999.04 is: 20,999.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,163.20 : 67,746.72 = 13,999.04 : x
  2. Step 2: Convert to fraction form
    45,163.20/67,746.72 = 13,999.04/x
  3. Step 3: Cross multiply
    45,163.20x = 67,746.72 × 13,999.04
  4. Step 4: Simplify right side
    45,163.20x = 948,389,043.15
  5. Step 5: Solve for x
    x = 948,389,043.15/45,163.20
  6. Step 6: Final answer
    x = 20,999.16

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1.5x scale

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.