Home / 74,777.04-111,961.20-72,794.16

Finding the Fourth Proportional to 74,777.04, 111,961.20 and 72,794.16

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Solution

The fourth proportional to 74,777.04, 111,961.20 and 72,794.16 is: 108,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,777.04 : 111,961.20 = 72,794.16 : x
  2. Step 2: Convert to fraction form
    74,777.04/111,961.20 = 72,794.16/x
  3. Step 3: Cross multiply
    74,777.04x = 111,961.20 × 72,794.16
  4. Step 4: Simplify right side
    74,777.04x = 8,150,121,506.59
  5. Step 5: Solve for x
    x = 8,150,121,506.59/74,777.04
  6. Step 6: Final answer
    x = 108,992.30

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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.