Home / 77,454.76-116,168.20-20,529.04

Finding the Fourth Proportional to 77,454.76, 116,168.20 and 20,529.04

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Solution

The fourth proportional to 77,454.76, 116,168.20 and 20,529.04 is: 30,789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,454.76 : 116,168.20 = 20,529.04 : x
  2. Step 2: Convert to fraction form
    77,454.76/116,168.20 = 20,529.04/x
  3. Step 3: Cross multiply
    77,454.76x = 116,168.20 × 20,529.04
  4. Step 4: Simplify right side
    77,454.76x = 2,384,821,624.53
  5. Step 5: Solve for x
    x = 2,384,821,624.53/77,454.76
  6. Step 6: Final answer
    x = 30,789.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.