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Finding the Fourth Proportional to 79,499.88, 109,806.03 and 57,955.50

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Solution

The fourth proportional to 79,499.88, 109,806.03 and 57,955.50 is: 80,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,499.88 : 109,806.03 = 57,955.50 : x
  2. Step 2: Convert to fraction form
    79,499.88/109,806.03 = 57,955.50/x
  3. Step 3: Cross multiply
    79,499.88x = 109,806.03 × 57,955.50
  4. Step 4: Simplify right side
    79,499.88x = 6,363,863,371.67
  5. Step 5: Solve for x
    x = 6,363,863,371.67/79,499.88
  6. Step 6: Final answer
    x = 80,048.72

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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.