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Finding the Fourth Proportional to 79,796.37, 110,128.97 and 45,815.51

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Solution

The fourth proportional to 79,796.37, 110,128.97 and 45,815.51 is: 63,231.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,796.37 : 110,128.97 = 45,815.51 : x
  2. Step 2: Convert to fraction form
    79,796.37/110,128.97 = 45,815.51/x
  3. Step 3: Cross multiply
    79,796.37x = 110,128.97 × 45,815.51
  4. Step 4: Simplify right side
    79,796.37x = 5,045,615,316.19
  5. Step 5: Solve for x
    x = 5,045,615,316.19/79,796.37
  6. Step 6: Final answer
    x = 63,231.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.