Home / 79,980.03-120,043.86-40,564.83

Finding the Fourth Proportional to 79,980.03, 120,043.86 and 40,564.83

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Solution

The fourth proportional to 79,980.03, 120,043.86 and 40,564.83 is: 60,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,980.03 : 120,043.86 = 40,564.83 : x
  2. Step 2: Convert to fraction form
    79,980.03/120,043.86 = 40,564.83/x
  3. Step 3: Cross multiply
    79,980.03x = 120,043.86 × 40,564.83
  4. Step 4: Simplify right side
    79,980.03x = 4,869,558,773.44
  5. Step 5: Solve for x
    x = 4,869,558,773.44/79,980.03
  6. Step 6: Final answer
    x = 60,884.68

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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.