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Finding the Fourth Proportional to 79,170.42, 109,250.16 and 43,360.86

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Solution

The fourth proportional to 79,170.42, 109,250.16 and 43,360.86 is: 59,835.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,170.42 : 109,250.16 = 43,360.86 : x
  2. Step 2: Convert to fraction form
    79,170.42/109,250.16 = 43,360.86/x
  3. Step 3: Cross multiply
    79,170.42x = 109,250.16 × 43,360.86
  4. Step 4: Simplify right side
    79,170.42x = 4,737,180,892.74
  5. Step 5: Solve for x
    x = 4,737,180,892.74/79,170.42
  6. Step 6: Final answer
    x = 59,835.24

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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.