Home / 72,825.13-109,236.77-39,755.87

Finding the Fourth Proportional to 72,825.13, 109,236.77 and 39,755.87

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Solution

The fourth proportional to 72,825.13, 109,236.77 and 39,755.87 is: 59,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,825.13 : 109,236.77 = 39,755.87 : x
  2. Step 2: Convert to fraction form
    72,825.13/109,236.77 = 39,755.87/x
  3. Step 3: Cross multiply
    72,825.13x = 109,236.77 × 39,755.87
  4. Step 4: Simplify right side
    72,825.13x = 4,342,802,827.34
  5. Step 5: Solve for x
    x = 4,342,802,827.34/72,825.13
  6. Step 6: Final answer
    x = 59,633.30

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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.