Home / 93,145.32-128,540.52-50,704.20

Finding the Fourth Proportional to 93,145.32, 128,540.52 and 50,704.20

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Solution

The fourth proportional to 93,145.32, 128,540.52 and 50,704.20 is: 69,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,145.32 : 128,540.52 = 50,704.20 : x
  2. Step 2: Convert to fraction form
    93,145.32/128,540.52 = 50,704.20/x
  3. Step 3: Cross multiply
    93,145.32x = 128,540.52 × 50,704.20
  4. Step 4: Simplify right side
    93,145.32x = 6,517,544,234.18
  5. Step 5: Solve for x
    x = 6,517,544,234.18/93,145.32
  6. Step 6: Final answer
    x = 69,971.78

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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.