Home / 79,408.08-109,551.90-45,398.30

Finding the Fourth Proportional to 79,408.08, 109,551.90 and 45,398.30

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Solution

The fourth proportional to 79,408.08, 109,551.90 and 45,398.30 is: 62,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,408.08 : 109,551.90 = 45,398.30 : x
  2. Step 2: Convert to fraction form
    79,408.08/109,551.90 = 45,398.30/x
  3. Step 3: Cross multiply
    79,408.08x = 109,551.90 × 45,398.30
  4. Step 4: Simplify right side
    79,408.08x = 4,973,469,747.89
  5. Step 5: Solve for x
    x = 4,973,469,747.89/79,408.08
  6. Step 6: Final answer
    x = 62,631.78

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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.