Home / 90,183.60-124,452.36-49,898.64

Finding the Fourth Proportional to 90,183.60, 124,452.36 and 49,898.64

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Solution

The fourth proportional to 90,183.60, 124,452.36 and 49,898.64 is: 68,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,183.60 : 124,452.36 = 49,898.64 : x
  2. Step 2: Convert to fraction form
    90,183.60/124,452.36 = 49,898.64/x
  3. Step 3: Cross multiply
    90,183.60x = 124,452.36 × 49,898.64
  4. Step 4: Simplify right side
    90,183.60x = 6,210,003,508.79
  5. Step 5: Solve for x
    x = 6,210,003,508.79/90,183.60
  6. Step 6: Final answer
    x = 68,859.57

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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.