Home / 79,126.28-109,193.82-43,316

Finding the Fourth Proportional to 79,126.28, 109,193.82 and 43,316

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Solution

The fourth proportional to 79,126.28, 109,193.82 and 43,316 is: 59,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,126.28 : 109,193.82 = 43,316 : x
  2. Step 2: Convert to fraction form
    79,126.28/109,193.82 = 43,316/x
  3. Step 3: Cross multiply
    79,126.28x = 109,193.82 × 43,316
  4. Step 4: Simplify right side
    79,126.28x = 4,729,839,507.12
  5. Step 5: Solve for x
    x = 4,729,839,507.12/79,126.28
  6. Step 6: Final answer
    x = 59,775.84

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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.