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Finding the Fourth Proportional to 72,094.60, 108,228.30 and 40,529.80

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Solution

The fourth proportional to 72,094.60, 108,228.30 and 40,529.80 is: 60,843.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,094.60 : 108,228.30 = 40,529.80 : x
  2. Step 2: Convert to fraction form
    72,094.60/108,228.30 = 40,529.80/x
  3. Step 3: Cross multiply
    72,094.60x = 108,228.30 × 40,529.80
  4. Step 4: Simplify right side
    72,094.60x = 4,386,471,353.34
  5. Step 5: Solve for x
    x = 4,386,471,353.34/72,094.60
  6. Step 6: Final answer
    x = 60,843.27

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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.