Home / 72,761.57-109,165.14-46,272.75

Finding the Fourth Proportional to 72,761.57, 109,165.14 and 46,272.75

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Solution

The fourth proportional to 72,761.57, 109,165.14 and 46,272.75 is: 69,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,761.57 : 109,165.14 = 46,272.75 : x
  2. Step 2: Convert to fraction form
    72,761.57/109,165.14 = 46,272.75/x
  3. Step 3: Cross multiply
    72,761.57x = 109,165.14 × 46,272.75
  4. Step 4: Simplify right side
    72,761.57x = 5,051,371,231.94
  5. Step 5: Solve for x
    x = 5,051,371,231.94/72,761.57
  6. Step 6: Final answer
    x = 69,423.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.