Home / 90,518.64-124,918-50,234.08

Finding the Fourth Proportional to 90,518.64, 124,918 and 50,234.08

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Solution

The fourth proportional to 90,518.64, 124,918 and 50,234.08 is: 69,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,518.64 : 124,918 = 50,234.08 : x
  2. Step 2: Convert to fraction form
    90,518.64/124,918 = 50,234.08/x
  3. Step 3: Cross multiply
    90,518.64x = 124,918 × 50,234.08
  4. Step 4: Simplify right side
    90,518.64x = 6,275,140,805.44
  5. Step 5: Solve for x
    x = 6,275,140,805.44/90,518.64
  6. Step 6: Final answer
    x = 69,324.29

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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.