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Finding the Fourth Proportional to 64,873.63, 97,302.07 and 20,504.87

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Solution

The fourth proportional to 64,873.63, 97,302.07 and 20,504.87 is: 30,754.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,873.63 : 97,302.07 = 20,504.87 : x
  2. Step 2: Convert to fraction form
    64,873.63/97,302.07 = 20,504.87/x
  3. Step 3: Cross multiply
    64,873.63x = 97,302.07 × 20,504.87
  4. Step 4: Simplify right side
    64,873.63x = 1,995,166,296.08
  5. Step 5: Solve for x
    x = 1,995,166,296.08/64,873.63
  6. Step 6: Final answer
    x = 30,754.66

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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.