Home / 74,159.61-102,340.43-40,167.96

Finding the Fourth Proportional to 74,159.61, 102,340.43 and 40,167.96

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Solution

The fourth proportional to 74,159.61, 102,340.43 and 40,167.96 is: 55,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,159.61 : 102,340.43 = 40,167.96 : x
  2. Step 2: Convert to fraction form
    74,159.61/102,340.43 = 40,167.96/x
  3. Step 3: Cross multiply
    74,159.61x = 102,340.43 × 40,167.96
  4. Step 4: Simplify right side
    74,159.61x = 4,110,806,298.62
  5. Step 5: Solve for x
    x = 4,110,806,298.62/74,159.61
  6. Step 6: Final answer
    x = 55,431.88

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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.