Home / 79,274.13-109,398.30-43,464.39

Finding the Fourth Proportional to 79,274.13, 109,398.30 and 43,464.39

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Solution

The fourth proportional to 79,274.13, 109,398.30 and 43,464.39 is: 59,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274.13 : 109,398.30 = 43,464.39 : x
  2. Step 2: Convert to fraction form
    79,274.13/109,398.30 = 43,464.39/x
  3. Step 3: Cross multiply
    79,274.13x = 109,398.30 × 43,464.39
  4. Step 4: Simplify right side
    79,274.13x = 4,754,930,376.54
  5. Step 5: Solve for x
    x = 4,754,930,376.54/79,274.13
  6. Step 6: Final answer
    x = 59,980.86

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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.