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Finding the Fourth Proportional to 93,145.50, 128,540.81 and 50,704.35

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Solution

The fourth proportional to 93,145.50, 128,540.81 and 50,704.35 is: 69,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,145.50 : 128,540.81 = 50,704.35 : x
  2. Step 2: Convert to fraction form
    93,145.50/128,540.81 = 50,704.35/x
  3. Step 3: Cross multiply
    93,145.50x = 128,540.81 × 50,704.35
  4. Step 4: Simplify right side
    93,145.50x = 6,517,577,966.00
  5. Step 5: Solve for x
    x = 6,517,577,966.00/93,145.50
  6. Step 6: Final answer
    x = 69,972.01

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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.