Home / 90,213.72-124,495.20-49,930.26

Finding the Fourth Proportional to 90,213.72, 124,495.20 and 49,930.26

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Solution

The fourth proportional to 90,213.72, 124,495.20 and 49,930.26 is: 68,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,213.72 : 124,495.20 = 49,930.26 : x
  2. Step 2: Convert to fraction form
    90,213.72/124,495.20 = 49,930.26/x
  3. Step 3: Cross multiply
    90,213.72x = 124,495.20 × 49,930.26
  4. Step 4: Simplify right side
    90,213.72x = 6,216,077,704.75
  5. Step 5: Solve for x
    x = 6,216,077,704.75/90,213.72
  6. Step 6: Final answer
    x = 68,903.91

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1.5x scale

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.