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Finding the Fourth Proportional to 50,520, 69,719.04 and 28,165.44

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Solution

The fourth proportional to 50,520, 69,719.04 and 28,165.44 is: 38,869.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,520 : 69,719.04 = 28,165.44 : x
  2. Step 2: Convert to fraction form
    50,520/69,719.04 = 28,165.44/x
  3. Step 3: Cross multiply
    50,520x = 69,719.04 × 28,165.44
  4. Step 4: Simplify right side
    50,520x = 1,963,667,437.98
  5. Step 5: Solve for x
    x = 1,963,667,437.98/50,520
  6. Step 6: Final answer
    x = 38,869.11

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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.