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Finding the Fourth Proportional to 68,437.27, 102,838.16 and 36,871.57

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Solution

The fourth proportional to 68,437.27, 102,838.16 and 36,871.57 is: 55,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,437.27 : 102,838.16 = 36,871.57 : x
  2. Step 2: Convert to fraction form
    68,437.27/102,838.16 = 36,871.57/x
  3. Step 3: Cross multiply
    68,437.27x = 102,838.16 × 36,871.57
  4. Step 4: Simplify right side
    68,437.27x = 3,791,804,672.21
  5. Step 5: Solve for x
    x = 3,791,804,672.21/68,437.27
  6. Step 6: Final answer
    x = 55,405.55

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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.