Home / 77,268.12-115,911.30-27,337.80

Finding the Fourth Proportional to 77,268.12, 115,911.30 and 27,337.80

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Solution

The fourth proportional to 77,268.12, 115,911.30 and 27,337.80 is: 41,009.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,268.12 : 115,911.30 = 27,337.80 : x
  2. Step 2: Convert to fraction form
    77,268.12/115,911.30 = 27,337.80/x
  3. Step 3: Cross multiply
    77,268.12x = 115,911.30 × 27,337.80
  4. Step 4: Simplify right side
    77,268.12x = 3,168,759,937.14
  5. Step 5: Solve for x
    x = 3,168,759,937.14/77,268.12
  6. Step 6: Final answer
    x = 41,009.93

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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.