Home / 77,084.76-115,556.10-27,137.64

Finding the Fourth Proportional to 77,084.76, 115,556.10 and 27,137.64

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Solution

The fourth proportional to 77,084.76, 115,556.10 and 27,137.64 is: 40,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,084.76 : 115,556.10 = 27,137.64 : x
  2. Step 2: Convert to fraction form
    77,084.76/115,556.10 = 27,137.64/x
  3. Step 3: Cross multiply
    77,084.76x = 115,556.10 × 27,137.64
  4. Step 4: Simplify right side
    77,084.76x = 3,135,919,841.60
  5. Step 5: Solve for x
    x = 3,135,919,841.60/77,084.76
  6. Step 6: Final answer
    x = 40,681.45

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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.