Home / 90,009.18-124,202.03-49,720.52

Finding the Fourth Proportional to 90,009.18, 124,202.03 and 49,720.52

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Solution

The fourth proportional to 90,009.18, 124,202.03 and 49,720.52 is: 68,608.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,009.18 : 124,202.03 = 49,720.52 : x
  2. Step 2: Convert to fraction form
    90,009.18/124,202.03 = 49,720.52/x
  3. Step 3: Cross multiply
    90,009.18x = 124,202.03 × 49,720.52
  4. Step 4: Simplify right side
    90,009.18x = 6,175,389,578.56
  5. Step 5: Solve for x
    x = 6,175,389,578.56/90,009.18
  6. Step 6: Final answer
    x = 68,608.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.