Home / 97,131.05-145,783.11-49,778.39

Finding the Fourth Proportional to 97,131.05, 145,783.11 and 49,778.39

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Solution

The fourth proportional to 97,131.05, 145,783.11 and 49,778.39 is: 74,711.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,131.05 : 145,783.11 = 49,778.39 : x
  2. Step 2: Convert to fraction form
    97,131.05/145,783.11 = 49,778.39/x
  3. Step 3: Cross multiply
    97,131.05x = 145,783.11 × 49,778.39
  4. Step 4: Simplify right side
    97,131.05x = 7,256,848,504.99
  5. Step 5: Solve for x
    x = 7,256,848,504.99/97,131.05
  6. Step 6: Final answer
    x = 74,711.93

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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.