Home / 79,203.11-109,299.35-42,903.87

Finding the Fourth Proportional to 79,203.11, 109,299.35 and 42,903.87

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Solution

The fourth proportional to 79,203.11, 109,299.35 and 42,903.87 is: 59,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,203.11 : 109,299.35 = 42,903.87 : x
  2. Step 2: Convert to fraction form
    79,203.11/109,299.35 = 42,903.87/x
  3. Step 3: Cross multiply
    79,203.11x = 109,299.35 × 42,903.87
  4. Step 4: Simplify right side
    79,203.11x = 4,689,365,103.48
  5. Step 5: Solve for x
    x = 4,689,365,103.48/79,203.11
  6. Step 6: Final answer
    x = 59,206.83

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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.