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Finding the Fourth Proportional to 79,191.77, 109,257.68 and 45,175.84

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Solution

The fourth proportional to 79,191.77, 109,257.68 and 45,175.84 is: 62,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,191.77 : 109,257.68 = 45,175.84 : x
  2. Step 2: Convert to fraction form
    79,191.77/109,257.68 = 45,175.84/x
  3. Step 3: Cross multiply
    79,191.77x = 109,257.68 × 45,175.84
  4. Step 4: Simplify right side
    79,191.77x = 4,935,807,310.25
  5. Step 5: Solve for x
    x = 4,935,807,310.25/79,191.77
  6. Step 6: Final answer
    x = 62,327.28

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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.