Home / 85,934.60-128,908.04-35,964.38

Finding the Fourth Proportional to 85,934.60, 128,908.04 and 35,964.38

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Solution

The fourth proportional to 85,934.60, 128,908.04 and 35,964.38 is: 53,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,934.60 : 128,908.04 = 35,964.38 : x
  2. Step 2: Convert to fraction form
    85,934.60/128,908.04 = 35,964.38/x
  3. Step 3: Cross multiply
    85,934.60x = 128,908.04 × 35,964.38
  4. Step 4: Simplify right side
    85,934.60x = 4,636,097,735.62
  5. Step 5: Solve for x
    x = 4,636,097,735.62/85,934.60
  6. Step 6: Final answer
    x = 53,949.14

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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.