Home / 78,163.09-117,255.57-25,562.10

Finding the Fourth Proportional to 78,163.09, 117,255.57 and 25,562.10

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Solution

The fourth proportional to 78,163.09, 117,255.57 and 25,562.10 is: 38,346.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,163.09 : 117,255.57 = 25,562.10 : x
  2. Step 2: Convert to fraction form
    78,163.09/117,255.57 = 25,562.10/x
  3. Step 3: Cross multiply
    78,163.09x = 117,255.57 × 25,562.10
  4. Step 4: Simplify right side
    78,163.09x = 2,997,298,605.90
  5. Step 5: Solve for x
    x = 2,997,298,605.90/78,163.09
  6. Step 6: Final answer
    x = 38,346.73

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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.