Home / 79,018.11-109,045.04-43,208.42

Finding the Fourth Proportional to 79,018.11, 109,045.04 and 43,208.42

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Solution

The fourth proportional to 79,018.11, 109,045.04 and 43,208.42 is: 59,627.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,018.11 : 109,045.04 = 43,208.42 : x
  2. Step 2: Convert to fraction form
    79,018.11/109,045.04 = 43,208.42/x
  3. Step 3: Cross multiply
    79,018.11x = 109,045.04 × 43,208.42
  4. Step 4: Simplify right side
    79,018.11x = 4,711,663,125.97
  5. Step 5: Solve for x
    x = 4,711,663,125.97/79,018.11
  6. Step 6: Final answer
    x = 59,627.64

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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.