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Finding the Fourth Proportional to 40,567.80, 60,837.30 and 28,087.80

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Solution

The fourth proportional to 40,567.80, 60,837.30 and 28,087.80 is: 42,121.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,567.80 : 60,837.30 = 28,087.80 : x
  2. Step 2: Convert to fraction form
    40,567.80/60,837.30 = 28,087.80/x
  3. Step 3: Cross multiply
    40,567.80x = 60,837.30 × 28,087.80
  4. Step 4: Simplify right side
    40,567.80x = 1,708,785,914.94
  5. Step 5: Solve for x
    x = 1,708,785,914.94/40,567.80
  6. Step 6: Final answer
    x = 42,121.73

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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.