Home / 80,520.21-111,114.18-44,712.50

Finding the Fourth Proportional to 80,520.21, 111,114.18 and 44,712.50

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Solution

The fourth proportional to 80,520.21, 111,114.18 and 44,712.50 is: 61,701.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520.21 : 111,114.18 = 44,712.50 : x
  2. Step 2: Convert to fraction form
    80,520.21/111,114.18 = 44,712.50/x
  3. Step 3: Cross multiply
    80,520.21x = 111,114.18 × 44,712.50
  4. Step 4: Simplify right side
    80,520.21x = 4,968,192,217.68
  5. Step 5: Solve for x
    x = 4,968,192,217.68/80,520.21
  6. Step 6: Final answer
    x = 61,701.18

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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.