Home / 90,365.55-124,704.72-50,079.96

Finding the Fourth Proportional to 90,365.55, 124,704.72 and 50,079.96

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Solution

The fourth proportional to 90,365.55, 124,704.72 and 50,079.96 is: 69,110.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,365.55 : 124,704.72 = 50,079.96 : x
  2. Step 2: Convert to fraction form
    90,365.55/124,704.72 = 50,079.96/x
  3. Step 3: Cross multiply
    90,365.55x = 124,704.72 × 50,079.96
  4. Step 4: Simplify right side
    90,365.55x = 6,245,207,389.41
  5. Step 5: Solve for x
    x = 6,245,207,389.41/90,365.55
  6. Step 6: Final answer
    x = 69,110.49

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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.