Home / 74,159.37-102,340.04-40,167.92

Finding the Fourth Proportional to 74,159.37, 102,340.04 and 40,167.92

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Solution

The fourth proportional to 74,159.37, 102,340.04 and 40,167.92 is: 55,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.37 : 102,340.04 = 40,167.92 : x
  2. Step 2: Convert to fraction form
    74,159.37/102,340.04 = 40,167.92/x
  3. Step 3: Cross multiply
    74,159.37x = 102,340.04 × 40,167.92
  4. Step 4: Simplify right side
    74,159.37x = 4,110,786,594.53
  5. Step 5: Solve for x
    x = 4,110,786,594.53/74,159.37
  6. Step 6: Final answer
    x = 55,431.79

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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.