Home / 115,027.75-172,541.67-31,921.75

Finding the Fourth Proportional to 115,027.75, 172,541.67 and 31,921.75

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Solution

The fourth proportional to 115,027.75, 172,541.67 and 31,921.75 is: 47,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,027.75 : 172,541.67 = 31,921.75 : x
  2. Step 2: Convert to fraction form
    115,027.75/172,541.67 = 31,921.75/x
  3. Step 3: Cross multiply
    115,027.75x = 172,541.67 × 31,921.75
  4. Step 4: Simplify right side
    115,027.75x = 5,507,832,054.32
  5. Step 5: Solve for x
    x = 5,507,832,054.32/115,027.75
  6. Step 6: Final answer
    x = 47,882.64

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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.