Home / 78,511.96-117,771.58-25,206.11

Finding the Fourth Proportional to 78,511.96, 117,771.58 and 25,206.11

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Solution

The fourth proportional to 78,511.96, 117,771.58 and 25,206.11 is: 37,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,511.96 : 117,771.58 = 25,206.11 : x
  2. Step 2: Convert to fraction form
    78,511.96/117,771.58 = 25,206.11/x
  3. Step 3: Cross multiply
    78,511.96x = 117,771.58 × 25,206.11
  4. Step 4: Simplify right side
    78,511.96x = 2,968,563,651.33
  5. Step 5: Solve for x
    x = 2,968,563,651.33/78,511.96
  6. Step 6: Final answer
    x = 37,810.34

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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.