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Finding the Fourth Proportional to 64,884.60, 97,314.90 and 18,127.80

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Solution

The fourth proportional to 64,884.60, 97,314.90 and 18,127.80 is: 27,188.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,884.60 : 97,314.90 = 18,127.80 : x
  2. Step 2: Convert to fraction form
    64,884.60/97,314.90 = 18,127.80/x
  3. Step 3: Cross multiply
    64,884.60x = 97,314.90 × 18,127.80
  4. Step 4: Simplify right side
    64,884.60x = 1,764,105,044.22
  5. Step 5: Solve for x
    x = 1,764,105,044.22/64,884.60
  6. Step 6: Final answer
    x = 27,188.35

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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.