Home / 80,449.50-111,061.65-56,682.27

Finding the Fourth Proportional to 80,449.50, 111,061.65 and 56,682.27

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Solution

The fourth proportional to 80,449.50, 111,061.65 and 56,682.27 is: 78,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,449.50 : 111,061.65 = 56,682.27 : x
  2. Step 2: Convert to fraction form
    80,449.50/111,061.65 = 56,682.27/x
  3. Step 3: Cross multiply
    80,449.50x = 111,061.65 × 56,682.27
  4. Step 4: Simplify right side
    80,449.50x = 6,295,226,991.86
  5. Step 5: Solve for x
    x = 6,295,226,991.86/80,449.50
  6. Step 6: Final answer
    x = 78,250.67

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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.