Home / 78,172.11-117,184.46-25,544.79

Finding the Fourth Proportional to 78,172.11, 117,184.46 and 25,544.79

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Solution

The fourth proportional to 78,172.11, 117,184.46 and 25,544.79 is: 38,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,172.11 : 117,184.46 = 25,544.79 : x
  2. Step 2: Convert to fraction form
    78,172.11/117,184.46 = 25,544.79/x
  3. Step 3: Cross multiply
    78,172.11x = 117,184.46 × 25,544.79
  4. Step 4: Simplify right side
    78,172.11x = 2,993,452,294.24
  5. Step 5: Solve for x
    x = 2,993,452,294.24/78,172.11
  6. Step 6: Final answer
    x = 38,293.10

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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.