Home / 74,949.60-103,427.20-40,957.56

Finding the Fourth Proportional to 74,949.60, 103,427.20 and 40,957.56

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Solution

The fourth proportional to 74,949.60, 103,427.20 and 40,957.56 is: 56,519.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,949.60 : 103,427.20 = 40,957.56 : x
  2. Step 2: Convert to fraction form
    74,949.60/103,427.20 = 40,957.56/x
  3. Step 3: Cross multiply
    74,949.60x = 103,427.20 × 40,957.56
  4. Step 4: Simplify right side
    74,949.60x = 4,236,125,749.63
  5. Step 5: Solve for x
    x = 4,236,125,749.63/74,949.60
  6. Step 6: Final answer
    x = 56,519.66

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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.