Home / 78,324.22-117,477.15-25,720.75

Finding the Fourth Proportional to 78,324.22, 117,477.15 and 25,720.75

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Solution

The fourth proportional to 78,324.22, 117,477.15 and 25,720.75 is: 38,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,324.22 : 117,477.15 = 25,720.75 : x
  2. Step 2: Convert to fraction form
    78,324.22/117,477.15 = 25,720.75/x
  3. Step 3: Cross multiply
    78,324.22x = 117,477.15 × 25,720.75
  4. Step 4: Simplify right side
    78,324.22x = 3,021,600,405.86
  5. Step 5: Solve for x
    x = 3,021,600,405.86/78,324.22
  6. Step 6: Final answer
    x = 38,578.11

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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.