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Finding the Fourth Proportional to 64,855.45, 97,286.10 and 19,873.57

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Solution

The fourth proportional to 64,855.45, 97,286.10 and 19,873.57 is: 29,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,855.45 : 97,286.10 = 19,873.57 : x
  2. Step 2: Convert to fraction form
    64,855.45/97,286.10 = 19,873.57/x
  3. Step 3: Cross multiply
    64,855.45x = 97,286.10 × 19,873.57
  4. Step 4: Simplify right side
    64,855.45x = 1,933,421,532.58
  5. Step 5: Solve for x
    x = 1,933,421,532.58/64,855.45
  6. Step 6: Final answer
    x = 29,811.24

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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.