Home / 74,778.04-111,826-55,816.12

Finding the Fourth Proportional to 74,778.04, 111,826 and 55,816.12

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Solution

The fourth proportional to 74,778.04, 111,826 and 55,816.12 is: 83,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,778.04 : 111,826 = 55,816.12 : x
  2. Step 2: Convert to fraction form
    74,778.04/111,826 = 55,816.12/x
  3. Step 3: Cross multiply
    74,778.04x = 111,826 × 55,816.12
  4. Step 4: Simplify right side
    74,778.04x = 6,241,693,435.12
  5. Step 5: Solve for x
    x = 6,241,693,435.12/74,778.04
  6. Step 6: Final answer
    x = 83,469.60

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1.5x scale

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.