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Finding the Fourth Proportional to 73,818.50, 101,869.62 and 40,284.50

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Solution

The fourth proportional to 73,818.50, 101,869.62 and 40,284.50 is: 55,592.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,818.50 : 101,869.62 = 40,284.50 : x
  2. Step 2: Convert to fraction form
    73,818.50/101,869.62 = 40,284.50/x
  3. Step 3: Cross multiply
    73,818.50x = 101,869.62 × 40,284.50
  4. Step 4: Simplify right side
    73,818.50x = 4,103,766,706.89
  5. Step 5: Solve for x
    x = 4,103,766,706.89/73,818.50
  6. Step 6: Final answer
    x = 55,592.66

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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.