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Finding the Fourth Proportional to 74,095.80, 102,251.40 and 40,103.60

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Solution

The fourth proportional to 74,095.80, 102,251.40 and 40,103.60 is: 55,342.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,095.80 : 102,251.40 = 40,103.60 : x
  2. Step 2: Convert to fraction form
    74,095.80/102,251.40 = 40,103.60/x
  3. Step 3: Cross multiply
    74,095.80x = 102,251.40 × 40,103.60
  4. Step 4: Simplify right side
    74,095.80x = 4,100,649,245.04
  5. Step 5: Solve for x
    x = 4,100,649,245.04/74,095.80
  6. Step 6: Final answer
    x = 55,342.53

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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.