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Finding the Fourth Proportional to 79,005.55, 109,027.65 and 43,195.55

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Solution

The fourth proportional to 79,005.55, 109,027.65 and 43,195.55 is: 59,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,005.55 : 109,027.65 = 43,195.55 : x
  2. Step 2: Convert to fraction form
    79,005.55/109,027.65 = 43,195.55/x
  3. Step 3: Cross multiply
    79,005.55x = 109,027.65 × 43,195.55
  4. Step 4: Simplify right side
    79,005.55x = 4,709,509,306.96
  5. Step 5: Solve for x
    x = 4,709,509,306.96/79,005.55
  6. Step 6: Final answer
    x = 59,609.85

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1.5x scale

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.