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Finding the Fourth Proportional to 64,704.31, 96,932.07 and 39,671.36

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Solution

The fourth proportional to 64,704.31, 96,932.07 and 39,671.36 is: 59,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,704.31 : 96,932.07 = 39,671.36 : x
  2. Step 2: Convert to fraction form
    64,704.31/96,932.07 = 39,671.36/x
  3. Step 3: Cross multiply
    64,704.31x = 96,932.07 × 39,671.36
  4. Step 4: Simplify right side
    64,704.31x = 3,845,427,044.52
  5. Step 5: Solve for x
    x = 3,845,427,044.52/64,704.31
  6. Step 6: Final answer
    x = 59,430.77

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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.