Home / 90,103.92-124,341.44-49,819.38

Finding the Fourth Proportional to 90,103.92, 124,341.44 and 49,819.38

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Solution

The fourth proportional to 90,103.92, 124,341.44 and 49,819.38 is: 68,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,103.92 : 124,341.44 = 49,819.38 : x
  2. Step 2: Convert to fraction form
    90,103.92/124,341.44 = 49,819.38/x
  3. Step 3: Cross multiply
    90,103.92x = 124,341.44 × 49,819.38
  4. Step 4: Simplify right side
    90,103.92x = 6,194,613,449.11
  5. Step 5: Solve for x
    x = 6,194,613,449.11/90,103.92
  6. Step 6: Final answer
    x = 68,749.66

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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.