Home / 85,396.14-128,006.70-35,505.18

Finding the Fourth Proportional to 85,396.14, 128,006.70 and 35,505.18

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Solution

The fourth proportional to 85,396.14, 128,006.70 and 35,505.18 is: 53,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,396.14 : 128,006.70 = 35,505.18 : x
  2. Step 2: Convert to fraction form
    85,396.14/128,006.70 = 35,505.18/x
  3. Step 3: Cross multiply
    85,396.14x = 128,006.70 × 35,505.18
  4. Step 4: Simplify right side
    85,396.14x = 4,544,900,924.71
  5. Step 5: Solve for x
    x = 4,544,900,924.71/85,396.14
  6. Step 6: Final answer
    x = 53,221.39

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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.