Home / 77,164.10-115,940.55-49,097.60

Finding the Fourth Proportional to 77,164.10, 115,940.55 and 49,097.60

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Solution

The fourth proportional to 77,164.10, 115,940.55 and 49,097.60 is: 73,770.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,164.10 : 115,940.55 = 49,097.60 : x
  2. Step 2: Convert to fraction form
    77,164.10/115,940.55 = 49,097.60/x
  3. Step 3: Cross multiply
    77,164.10x = 115,940.55 × 49,097.60
  4. Step 4: Simplify right side
    77,164.10x = 5,692,402,747.68
  5. Step 5: Solve for x
    x = 5,692,402,747.68/77,164.10
  6. Step 6: Final answer
    x = 73,770.09

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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.