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Finding the Fourth Proportional to 79,660.11, 109,918.07 and 45,662.34

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Solution

The fourth proportional to 79,660.11, 109,918.07 and 45,662.34 is: 63,006.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,660.11 : 109,918.07 = 45,662.34 : x
  2. Step 2: Convert to fraction form
    79,660.11/109,918.07 = 45,662.34/x
  3. Step 3: Cross multiply
    79,660.11x = 109,918.07 × 45,662.34
  4. Step 4: Simplify right side
    79,660.11x = 5,019,116,284.48
  5. Step 5: Solve for x
    x = 5,019,116,284.48/79,660.11
  6. Step 6: Final answer
    x = 63,006.65

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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.