Home / 82,911.09-114,416.32-48,919.64

Finding the Fourth Proportional to 82,911.09, 114,416.32 and 48,919.64

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Solution

The fourth proportional to 82,911.09, 114,416.32 and 48,919.64 is: 67,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,911.09 : 114,416.32 = 48,919.64 : x
  2. Step 2: Convert to fraction form
    82,911.09/114,416.32 = 48,919.64/x
  3. Step 3: Cross multiply
    82,911.09x = 114,416.32 × 48,919.64
  4. Step 4: Simplify right side
    82,911.09x = 5,597,205,184.52
  5. Step 5: Solve for x
    x = 5,597,205,184.52/82,911.09
  6. Step 6: Final answer
    x = 67,508.52

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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.