Home / 90,189.44-124,511.48-54,388.52

Finding the Fourth Proportional to 90,189.44, 124,511.48 and 54,388.52

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Solution

The fourth proportional to 90,189.44, 124,511.48 and 54,388.52 is: 75,086.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,189.44 : 124,511.48 = 54,388.52 : x
  2. Step 2: Convert to fraction form
    90,189.44/124,511.48 = 54,388.52/x
  3. Step 3: Cross multiply
    90,189.44x = 124,511.48 × 54,388.52
  4. Step 4: Simplify right side
    90,189.44x = 6,771,995,120.21
  5. Step 5: Solve for x
    x = 6,771,995,120.21/90,189.44
  6. Step 6: Final answer
    x = 75,086.34

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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.