Home / 78,183.08-117,289.04-25,595.48

Finding the Fourth Proportional to 78,183.08, 117,289.04 and 25,595.48

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Solution

The fourth proportional to 78,183.08, 117,289.04 and 25,595.48 is: 38,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,183.08 : 117,289.04 = 25,595.48 : x
  2. Step 2: Convert to fraction form
    78,183.08/117,289.04 = 25,595.48/x
  3. Step 3: Cross multiply
    78,183.08x = 117,289.04 × 25,595.48
  4. Step 4: Simplify right side
    78,183.08x = 3,002,069,277.54
  5. Step 5: Solve for x
    x = 3,002,069,277.54/78,183.08
  6. Step 6: Final answer
    x = 38,397.94

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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.