Home / 93,161.20-128,558.22-50,719.64

Finding the Fourth Proportional to 93,161.20, 128,558.22 and 50,719.64

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Solution

The fourth proportional to 93,161.20, 128,558.22 and 50,719.64 is: 69,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,161.20 : 128,558.22 = 50,719.64 : x
  2. Step 2: Convert to fraction form
    93,161.20/128,558.22 = 50,719.64/x
  3. Step 3: Cross multiply
    93,161.20x = 128,558.22 × 50,719.64
  4. Step 4: Simplify right side
    93,161.20x = 6,520,426,637.44
  5. Step 5: Solve for x
    x = 6,520,426,637.44/93,161.20
  6. Step 6: Final answer
    x = 69,990.80

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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.