Home / 74,340.52-102,589.22-40,805.80

Finding the Fourth Proportional to 74,340.52, 102,589.22 and 40,805.80

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Solution

The fourth proportional to 74,340.52, 102,589.22 and 40,805.80 is: 56,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.52 : 102,589.22 = 40,805.80 : x
  2. Step 2: Convert to fraction form
    74,340.52/102,589.22 = 40,805.80/x
  3. Step 3: Cross multiply
    74,340.52x = 102,589.22 × 40,805.80
  4. Step 4: Simplify right side
    74,340.52x = 4,186,235,193.48
  5. Step 5: Solve for x
    x = 4,186,235,193.48/74,340.52
  6. Step 6: Final answer
    x = 56,311.62

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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.