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Finding the Fourth Proportional to 55,172.64, 82,807.02 and 28,895.88

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Solution

The fourth proportional to 55,172.64, 82,807.02 and 28,895.88 is: 43,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172.64 : 82,807.02 = 28,895.88 : x
  2. Step 2: Convert to fraction form
    55,172.64/82,807.02 = 28,895.88/x
  3. Step 3: Cross multiply
    55,172.64x = 82,807.02 × 28,895.88
  4. Step 4: Simplify right side
    55,172.64x = 2,392,781,713.08
  5. Step 5: Solve for x
    x = 2,392,781,713.08/55,172.64
  6. Step 6: Final answer
    x = 43,368.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.