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Finding the Fourth Proportional to 79,808.76, 110,132.70 and 43,509.42

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Solution

The fourth proportional to 79,808.76, 110,132.70 and 43,509.42 is: 60,041.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,808.76 : 110,132.70 = 43,509.42 : x
  2. Step 2: Convert to fraction form
    79,808.76/110,132.70 = 43,509.42/x
  3. Step 3: Cross multiply
    79,808.76x = 110,132.70 × 43,509.42
  4. Step 4: Simplify right side
    79,808.76x = 4,791,809,900.03
  5. Step 5: Solve for x
    x = 4,791,809,900.03/79,808.76
  6. Step 6: Final answer
    x = 60,041.15

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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.