Home / 79,103.02-118,654.22-31,739.28

Finding the Fourth Proportional to 79,103.02, 118,654.22 and 31,739.28

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Solution

The fourth proportional to 79,103.02, 118,654.22 and 31,739.28 is: 47,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,103.02 : 118,654.22 = 31,739.28 : x
  2. Step 2: Convert to fraction form
    79,103.02/118,654.22 = 31,739.28/x
  3. Step 3: Cross multiply
    79,103.02x = 118,654.22 × 31,739.28
  4. Step 4: Simplify right side
    79,103.02x = 3,765,999,511.76
  5. Step 5: Solve for x
    x = 3,765,999,511.76/79,103.02
  6. Step 6: Final answer
    x = 47,608.80

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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.