Home / 72,818.60-109,240.35-33,379.09

Finding the Fourth Proportional to 72,818.60, 109,240.35 and 33,379.09

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Solution

The fourth proportional to 72,818.60, 109,240.35 and 33,379.09 is: 50,074.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,818.60 : 109,240.35 = 33,379.09 : x
  2. Step 2: Convert to fraction form
    72,818.60/109,240.35 = 33,379.09/x
  3. Step 3: Cross multiply
    72,818.60x = 109,240.35 × 33,379.09
  4. Step 4: Simplify right side
    72,818.60x = 3,646,343,076.01
  5. Step 5: Solve for x
    x = 3,646,343,076.01/72,818.60
  6. Step 6: Final answer
    x = 50,074.34

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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.