Home / 90,499.13-124,886.90-50,212.03

Finding the Fourth Proportional to 90,499.13, 124,886.90 and 50,212.03

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Solution

The fourth proportional to 90,499.13, 124,886.90 and 50,212.03 is: 69,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,499.13 : 124,886.90 = 50,212.03 : x
  2. Step 2: Convert to fraction form
    90,499.13/124,886.90 = 50,212.03/x
  3. Step 3: Cross multiply
    90,499.13x = 124,886.90 × 50,212.03
  4. Step 4: Simplify right side
    90,499.13x = 6,270,824,183.20
  5. Step 5: Solve for x
    x = 6,270,824,183.20/90,499.13
  6. Step 6: Final answer
    x = 69,291.54

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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.