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Finding the Fourth Proportional to 49,772.45, 74,657.77 and 12,332.61

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Solution

The fourth proportional to 49,772.45, 74,657.77 and 12,332.61 is: 18,498.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,772.45 : 74,657.77 = 12,332.61 : x
  2. Step 2: Convert to fraction form
    49,772.45/74,657.77 = 12,332.61/x
  3. Step 3: Cross multiply
    49,772.45x = 74,657.77 × 12,332.61
  4. Step 4: Simplify right side
    49,772.45x = 920,725,130.05
  5. Step 5: Solve for x
    x = 920,725,130.05/49,772.45
  6. Step 6: Final answer
    x = 18,498.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.