Home / 79,650.47-109,916.80-43,839.72

Finding the Fourth Proportional to 79,650.47, 109,916.80 and 43,839.72

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Solution

The fourth proportional to 79,650.47, 109,916.80 and 43,839.72 is: 60,498.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,650.47 : 109,916.80 = 43,839.72 : x
  2. Step 2: Convert to fraction form
    79,650.47/109,916.80 = 43,839.72/x
  3. Step 3: Cross multiply
    79,650.47x = 109,916.80 × 43,839.72
  4. Step 4: Simplify right side
    79,650.47x = 4,818,721,625.70
  5. Step 5: Solve for x
    x = 4,818,721,625.70/79,650.47
  6. Step 6: Final answer
    x = 60,498.34

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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.