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Finding the Fourth Proportional to 74,700.92, 112,121.70 and 49,758.50

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Solution

The fourth proportional to 74,700.92, 112,121.70 and 49,758.50 is: 74,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,700.92 : 112,121.70 = 49,758.50 : x
  2. Step 2: Convert to fraction form
    74,700.92/112,121.70 = 49,758.50/x
  3. Step 3: Cross multiply
    74,700.92x = 112,121.70 × 49,758.50
  4. Step 4: Simplify right side
    74,700.92x = 5,579,007,609.45
  5. Step 5: Solve for x
    x = 5,579,007,609.45/74,700.92
  6. Step 6: Final answer
    x = 74,684.59

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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.