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Finding the Fourth Proportional to 79,226.76, 109,334.16 and 47,397

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Solution

The fourth proportional to 79,226.76, 109,334.16 and 47,397 is: 65,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,226.76 : 109,334.16 = 47,397 : x
  2. Step 2: Convert to fraction form
    79,226.76/109,334.16 = 47,397/x
  3. Step 3: Cross multiply
    79,226.76x = 109,334.16 × 47,397
  4. Step 4: Simplify right side
    79,226.76x = 5,182,111,181.52
  5. Step 5: Solve for x
    x = 5,182,111,181.52/79,226.76
  6. Step 6: Final answer
    x = 65,408.60

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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.