Home / 74,042.56-102,185.76-40,513.60

Finding the Fourth Proportional to 74,042.56, 102,185.76 and 40,513.60

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Solution

The fourth proportional to 74,042.56, 102,185.76 and 40,513.60 is: 55,912.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,042.56 : 102,185.76 = 40,513.60 : x
  2. Step 2: Convert to fraction form
    74,042.56/102,185.76 = 40,513.60/x
  3. Step 3: Cross multiply
    74,042.56x = 102,185.76 × 40,513.60
  4. Step 4: Simplify right side
    74,042.56x = 4,139,913,006.34
  5. Step 5: Solve for x
    x = 4,139,913,006.34/74,042.56
  6. Step 6: Final answer
    x = 55,912.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.