Home / 49,729.20-74,866.02-45,374.64

Finding the Fourth Proportional to 49,729.20, 74,866.02 and 45,374.64

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Solution

The fourth proportional to 49,729.20, 74,866.02 and 45,374.64 is: 68,310.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,729.20 : 74,866.02 = 45,374.64 : x
  2. Step 2: Convert to fraction form
    49,729.20/74,866.02 = 45,374.64/x
  3. Step 3: Cross multiply
    49,729.20x = 74,866.02 × 45,374.64
  4. Step 4: Simplify right side
    49,729.20x = 3,397,018,705.73
  5. Step 5: Solve for x
    x = 3,397,018,705.73/49,729.20
  6. Step 6: Final answer
    x = 68,310.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.