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Finding the Fourth Proportional to 65,338.08, 97,992.72 and 20,956.32

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Solution

The fourth proportional to 65,338.08, 97,992.72 and 20,956.32 is: 31,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,338.08 : 97,992.72 = 20,956.32 : x
  2. Step 2: Convert to fraction form
    65,338.08/97,992.72 = 20,956.32/x
  3. Step 3: Cross multiply
    65,338.08x = 97,992.72 × 20,956.32
  4. Step 4: Simplify right side
    65,338.08x = 2,053,566,797.99
  5. Step 5: Solve for x
    x = 2,053,566,797.99/65,338.08
  6. Step 6: Final answer
    x = 31,429.86

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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.