Home / 85,904.10-128,819.70-41,544.45

Finding the Fourth Proportional to 85,904.10, 128,819.70 and 41,544.45

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Solution

The fourth proportional to 85,904.10, 128,819.70 and 41,544.45 is: 62,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,904.10 : 128,819.70 = 41,544.45 : x
  2. Step 2: Convert to fraction form
    85,904.10/128,819.70 = 41,544.45/x
  3. Step 3: Cross multiply
    85,904.10x = 128,819.70 × 41,544.45
  4. Step 4: Simplify right side
    85,904.10x = 5,351,743,585.67
  5. Step 5: Solve for x
    x = 5,351,743,585.67/85,904.10
  6. Step 6: Final answer
    x = 62,299.05

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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.