Home / 79,195.18-109,289.02-43,387.42

Finding the Fourth Proportional to 79,195.18, 109,289.02 and 43,387.42

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Solution

The fourth proportional to 79,195.18, 109,289.02 and 43,387.42 is: 59,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,195.18 : 109,289.02 = 43,387.42 : x
  2. Step 2: Convert to fraction form
    79,195.18/109,289.02 = 43,387.42/x
  3. Step 3: Cross multiply
    79,195.18x = 109,289.02 × 43,387.42
  4. Step 4: Simplify right side
    79,195.18x = 4,741,767,848.75
  5. Step 5: Solve for x
    x = 4,741,767,848.75/79,195.18
  6. Step 6: Final answer
    x = 59,874.45

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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.