Home / 79,512.76-109,730.40-43,704.28

Finding the Fourth Proportional to 79,512.76, 109,730.40 and 43,704.28

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Solution

The fourth proportional to 79,512.76, 109,730.40 and 43,704.28 is: 60,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,512.76 : 109,730.40 = 43,704.28 : x
  2. Step 2: Convert to fraction form
    79,512.76/109,730.40 = 43,704.28/x
  3. Step 3: Cross multiply
    79,512.76x = 109,730.40 × 43,704.28
  4. Step 4: Simplify right side
    79,512.76x = 4,795,688,126.11
  5. Step 5: Solve for x
    x = 4,795,688,126.11/79,512.76
  6. Step 6: Final answer
    x = 60,313.44

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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.