Home / 47,921.80-71,816.94-30,360.04

Finding the Fourth Proportional to 47,921.80, 71,816.94 and 30,360.04

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Solution

The fourth proportional to 47,921.80, 71,816.94 and 30,360.04 is: 45,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921.80 : 71,816.94 = 30,360.04 : x
  2. Step 2: Convert to fraction form
    47,921.80/71,816.94 = 30,360.04/x
  3. Step 3: Cross multiply
    47,921.80x = 71,816.94 × 30,360.04
  4. Step 4: Simplify right side
    47,921.80x = 2,180,365,171.08
  5. Step 5: Solve for x
    x = 2,180,365,171.08/47,921.80
  6. Step 6: Final answer
    x = 45,498.40

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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.