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Finding the Fourth Proportional to 64,253.36, 96,384.90 and 19,884.60

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Solution

The fourth proportional to 64,253.36, 96,384.90 and 19,884.60 is: 29,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,253.36 : 96,384.90 = 19,884.60 : x
  2. Step 2: Convert to fraction form
    64,253.36/96,384.90 = 19,884.60/x
  3. Step 3: Cross multiply
    64,253.36x = 96,384.90 × 19,884.60
  4. Step 4: Simplify right side
    64,253.36x = 1,916,575,182.54
  5. Step 5: Solve for x
    x = 1,916,575,182.54/64,253.36
  6. Step 6: Final answer
    x = 29,828.40

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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.