Home / 57,128.92-78,780.04-44,039.68

Finding the Fourth Proportional to 57,128.92, 78,780.04 and 44,039.68

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Solution

The fourth proportional to 57,128.92, 78,780.04 and 44,039.68 is: 60,730.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,128.92 : 78,780.04 = 44,039.68 : x
  2. Step 2: Convert to fraction form
    57,128.92/78,780.04 = 44,039.68/x
  3. Step 3: Cross multiply
    57,128.92x = 78,780.04 × 44,039.68
  4. Step 4: Simplify right side
    57,128.92x = 3,469,447,751.99
  5. Step 5: Solve for x
    x = 3,469,447,751.99/57,128.92
  6. Step 6: Final answer
    x = 60,730.15

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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.