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Finding the Fourth Proportional to 79,450.80, 109,645.55 and 45,469.95

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Solution

The fourth proportional to 79,450.80, 109,645.55 and 45,469.95 is: 62,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,450.80 : 109,645.55 = 45,469.95 : x
  2. Step 2: Convert to fraction form
    79,450.80/109,645.55 = 45,469.95/x
  3. Step 3: Cross multiply
    79,450.80x = 109,645.55 × 45,469.95
  4. Step 4: Simplify right side
    79,450.80x = 4,985,577,676.22
  5. Step 5: Solve for x
    x = 4,985,577,676.22/79,450.80
  6. Step 6: Final answer
    x = 62,750.50

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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.