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Finding the Fourth Proportional to 67,740.76, 101,594.73 and 28,276.48

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Solution

The fourth proportional to 67,740.76, 101,594.73 and 28,276.48 is: 42,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,740.76 : 101,594.73 = 28,276.48 : x
  2. Step 2: Convert to fraction form
    67,740.76/101,594.73 = 28,276.48/x
  3. Step 3: Cross multiply
    67,740.76x = 101,594.73 × 28,276.48
  4. Step 4: Simplify right side
    67,740.76x = 2,872,741,350.95
  5. Step 5: Solve for x
    x = 2,872,741,350.95/67,740.76
  6. Step 6: Final answer
    x = 42,407.87

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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.