Home / 72,847.45-109,225.92-30,705.85

Finding the Fourth Proportional to 72,847.45, 109,225.92 and 30,705.85

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Solution

The fourth proportional to 72,847.45, 109,225.92 and 30,705.85 is: 46,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,847.45 : 109,225.92 = 30,705.85 : x
  2. Step 2: Convert to fraction form
    72,847.45/109,225.92 = 30,705.85/x
  3. Step 3: Cross multiply
    72,847.45x = 109,225.92 × 30,705.85
  4. Step 4: Simplify right side
    72,847.45x = 3,353,874,715.63
  5. Step 5: Solve for x
    x = 3,353,874,715.63/72,847.45
  6. Step 6: Final answer
    x = 46,039.70

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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.