Home / 79,709.10-109,999.26-43,900.35

Finding the Fourth Proportional to 79,709.10, 109,999.26 and 43,900.35

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Solution

The fourth proportional to 79,709.10, 109,999.26 and 43,900.35 is: 60,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,709.10 : 109,999.26 = 43,900.35 : x
  2. Step 2: Convert to fraction form
    79,709.10/109,999.26 = 43,900.35/x
  3. Step 3: Cross multiply
    79,709.10x = 109,999.26 × 43,900.35
  4. Step 4: Simplify right side
    79,709.10x = 4,829,006,013.74
  5. Step 5: Solve for x
    x = 4,829,006,013.74/79,709.10
  6. Step 6: Final answer
    x = 60,582.87

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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.