Home / 85,933.08-128,905.79-35,962.88

Finding the Fourth Proportional to 85,933.08, 128,905.79 and 35,962.88

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Solution

The fourth proportional to 85,933.08, 128,905.79 and 35,962.88 is: 53,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,933.08 : 128,905.79 = 35,962.88 : x
  2. Step 2: Convert to fraction form
    85,933.08/128,905.79 = 35,962.88/x
  3. Step 3: Cross multiply
    85,933.08x = 128,905.79 × 35,962.88
  4. Step 4: Simplify right side
    85,933.08x = 4,635,822,632.73
  5. Step 5: Solve for x
    x = 4,635,822,632.73/85,933.08
  6. Step 6: Final answer
    x = 53,946.89

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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.