Home / 115,019.21-172,556.49-48,478.37

Finding the Fourth Proportional to 115,019.21, 172,556.49 and 48,478.37

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Solution

The fourth proportional to 115,019.21, 172,556.49 and 48,478.37 is: 72,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,019.21 : 172,556.49 = 48,478.37 : x
  2. Step 2: Convert to fraction form
    115,019.21/172,556.49 = 48,478.37/x
  3. Step 3: Cross multiply
    115,019.21x = 172,556.49 × 48,478.37
  4. Step 4: Simplify right side
    115,019.21x = 8,365,256,505.34
  5. Step 5: Solve for x
    x = 8,365,256,505.34/115,019.21
  6. Step 6: Final answer
    x = 72,729.22

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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.