Home / 79,410.12-109,581-43,599.90

Finding the Fourth Proportional to 79,410.12, 109,581 and 43,599.90

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Solution

The fourth proportional to 79,410.12, 109,581 and 43,599.90 is: 60,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,410.12 : 109,581 = 43,599.90 : x
  2. Step 2: Convert to fraction form
    79,410.12/109,581 = 43,599.90/x
  3. Step 3: Cross multiply
    79,410.12x = 109,581 × 43,599.90
  4. Step 4: Simplify right side
    79,410.12x = 4,777,720,641.90
  5. Step 5: Solve for x
    x = 4,777,720,641.90/79,410.12
  6. Step 6: Final answer
    x = 60,165.14

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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.