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Finding the Fourth Proportional to 50,374.76, 75,512.88 and 18,761.66

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Solution

The fourth proportional to 50,374.76, 75,512.88 and 18,761.66 is: 28,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,374.76 : 75,512.88 = 18,761.66 : x
  2. Step 2: Convert to fraction form
    50,374.76/75,512.88 = 18,761.66/x
  3. Step 3: Cross multiply
    50,374.76x = 75,512.88 × 18,761.66
  4. Step 4: Simplify right side
    50,374.76x = 1,416,746,980.18
  5. Step 5: Solve for x
    x = 1,416,746,980.18/50,374.76
  6. Step 6: Final answer
    x = 28,124.14

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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.