Home / 115,017.75-172,526.67-31,911.75

Finding the Fourth Proportional to 115,017.75, 172,526.67 and 31,911.75

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Solution

The fourth proportional to 115,017.75, 172,526.67 and 31,911.75 is: 47,867.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,017.75 : 172,526.67 = 31,911.75 : x
  2. Step 2: Convert to fraction form
    115,017.75/172,526.67 = 31,911.75/x
  3. Step 3: Cross multiply
    115,017.75x = 172,526.67 × 31,911.75
  4. Step 4: Simplify right side
    115,017.75x = 5,505,627,961.37
  5. Step 5: Solve for x
    x = 5,505,627,961.37/115,017.75
  6. Step 6: Final answer
    x = 47,867.64

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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.