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Finding the Fourth Proportional to 72,588.60, 108,924.84 and 30,464.88

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Solution

The fourth proportional to 72,588.60, 108,924.84 and 30,464.88 is: 45,714.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,588.60 : 108,924.84 = 30,464.88 : x
  2. Step 2: Convert to fraction form
    72,588.60/108,924.84 = 30,464.88/x
  3. Step 3: Cross multiply
    72,588.60x = 108,924.84 × 30,464.88
  4. Step 4: Simplify right side
    72,588.60x = 3,318,382,179.62
  5. Step 5: Solve for x
    x = 3,318,382,179.62/72,588.60
  6. Step 6: Final answer
    x = 45,714.92

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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.