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Finding the Fourth Proportional to 74,095.70, 102,251.31 and 40,103.49

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Solution

The fourth proportional to 74,095.70, 102,251.31 and 40,103.49 is: 55,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,095.70 : 102,251.31 = 40,103.49 : x
  2. Step 2: Convert to fraction form
    74,095.70/102,251.31 = 40,103.49/x
  3. Step 3: Cross multiply
    74,095.70x = 102,251.31 × 40,103.49
  4. Step 4: Simplify right side
    74,095.70x = 4,100,634,388.07
  5. Step 5: Solve for x
    x = 4,100,634,388.07/74,095.70
  6. Step 6: Final answer
    x = 55,342.41

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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.