Home / 72,918.18-109,311.66-26,160.12

Finding the Fourth Proportional to 72,918.18, 109,311.66 and 26,160.12

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Solution

The fourth proportional to 72,918.18, 109,311.66 and 26,160.12 is: 39,216.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,918.18 : 109,311.66 = 26,160.12 : x
  2. Step 2: Convert to fraction form
    72,918.18/109,311.66 = 26,160.12/x
  3. Step 3: Cross multiply
    72,918.18x = 109,311.66 × 26,160.12
  4. Step 4: Simplify right side
    72,918.18x = 2,859,606,143.00
  5. Step 5: Solve for x
    x = 2,859,606,143.00/72,918.18
  6. Step 6: Final answer
    x = 39,216.64

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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.