Home / 79,267.14-109,388.34-42,969.60

Finding the Fourth Proportional to 79,267.14, 109,388.34 and 42,969.60

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Solution

The fourth proportional to 79,267.14, 109,388.34 and 42,969.60 is: 59,297.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,267.14 : 109,388.34 = 42,969.60 : x
  2. Step 2: Convert to fraction form
    79,267.14/109,388.34 = 42,969.60/x
  3. Step 3: Cross multiply
    79,267.14x = 109,388.34 × 42,969.60
  4. Step 4: Simplify right side
    79,267.14x = 4,700,373,214.46
  5. Step 5: Solve for x
    x = 4,700,373,214.46/79,267.14
  6. Step 6: Final answer
    x = 59,297.88

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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.