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Finding the Fourth Proportional to 93,162.45, 128,560.32 and 50,720.88

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Solution

The fourth proportional to 93,162.45, 128,560.32 and 50,720.88 is: 69,992.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,162.45 : 128,560.32 = 50,720.88 : x
  2. Step 2: Convert to fraction form
    93,162.45/128,560.32 = 50,720.88/x
  3. Step 3: Cross multiply
    93,162.45x = 128,560.32 × 50,720.88
  4. Step 4: Simplify right side
    93,162.45x = 6,520,692,563.48
  5. Step 5: Solve for x
    x = 6,520,692,563.48/93,162.45
  6. Step 6: Final answer
    x = 69,992.71

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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.