Home / 77,090.06-115,649.98-27,171.79

Finding the Fourth Proportional to 77,090.06, 115,649.98 and 27,171.79

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Solution

The fourth proportional to 77,090.06, 115,649.98 and 27,171.79 is: 40,762.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,090.06 : 115,649.98 = 27,171.79 : x
  2. Step 2: Convert to fraction form
    77,090.06/115,649.98 = 27,171.79/x
  3. Step 3: Cross multiply
    77,090.06x = 115,649.98 × 27,171.79
  4. Step 4: Simplify right side
    77,090.06x = 3,142,416,613.01
  5. Step 5: Solve for x
    x = 3,142,416,613.01/77,090.06
  6. Step 6: Final answer
    x = 40,762.93

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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.