Home / 115,009.11-172,587.49-55,812.49

Finding the Fourth Proportional to 115,009.11, 172,587.49 and 55,812.49

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Solution

The fourth proportional to 115,009.11, 172,587.49 and 55,812.49 is: 83,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,009.11 : 172,587.49 = 55,812.49 : x
  2. Step 2: Convert to fraction form
    115,009.11/172,587.49 = 55,812.49/x
  3. Step 3: Cross multiply
    115,009.11x = 172,587.49 × 55,812.49
  4. Step 4: Simplify right side
    115,009.11x = 9,632,536,988.75
  5. Step 5: Solve for x
    x = 9,632,536,988.75/115,009.11
  6. Step 6: Final answer
    x = 83,754.56

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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.