Home / 109,279.81-163,929-30,394.04

Finding the Fourth Proportional to 109,279.81, 163,929 and 30,394.04

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Solution

The fourth proportional to 109,279.81, 163,929 and 30,394.04 is: 45,593.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,279.81 : 163,929 = 30,394.04 : x
  2. Step 2: Convert to fraction form
    109,279.81/163,929 = 30,394.04/x
  3. Step 3: Cross multiply
    109,279.81x = 163,929 × 30,394.04
  4. Step 4: Simplify right side
    109,279.81x = 4,982,464,583.16
  5. Step 5: Solve for x
    x = 4,982,464,583.16/109,279.81
  6. Step 6: Final answer
    x = 45,593.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.