Home / 115,258.11-172,887.17-31,018.46

Finding the Fourth Proportional to 115,258.11, 172,887.17 and 31,018.46

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Solution

The fourth proportional to 115,258.11, 172,887.17 and 31,018.46 is: 46,527.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,258.11 : 172,887.17 = 31,018.46 : x
  2. Step 2: Convert to fraction form
    115,258.11/172,887.17 = 31,018.46/x
  3. Step 3: Cross multiply
    115,258.11x = 172,887.17 × 31,018.46
  4. Step 4: Simplify right side
    115,258.11x = 5,362,693,720.12
  5. Step 5: Solve for x
    x = 5,362,693,720.12/115,258.11
  6. Step 6: Final answer
    x = 46,527.69

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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.