Home / 79,122.25-109,188.69-43,312.28

Finding the Fourth Proportional to 79,122.25, 109,188.69 and 43,312.28

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Solution

The fourth proportional to 79,122.25, 109,188.69 and 43,312.28 is: 59,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,122.25 : 109,188.69 = 43,312.28 : x
  2. Step 2: Convert to fraction form
    79,122.25/109,188.69 = 43,312.28/x
  3. Step 3: Cross multiply
    79,122.25x = 109,188.69 × 43,312.28
  4. Step 4: Simplify right side
    79,122.25x = 4,729,211,114.11
  5. Step 5: Solve for x
    x = 4,729,211,114.11/79,122.25
  6. Step 6: Final answer
    x = 59,770.94

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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.