Home / 85,171.60-127,776.10-25,195.38

Finding the Fourth Proportional to 85,171.60, 127,776.10 and 25,195.38

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Solution

The fourth proportional to 85,171.60, 127,776.10 and 25,195.38 is: 37,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,171.60 : 127,776.10 = 25,195.38 : x
  2. Step 2: Convert to fraction form
    85,171.60/127,776.10 = 25,195.38/x
  3. Step 3: Cross multiply
    85,171.60x = 127,776.10 × 25,195.38
  4. Step 4: Simplify right side
    85,171.60x = 3,219,367,394.42
  5. Step 5: Solve for x
    x = 3,219,367,394.42/85,171.60
  6. Step 6: Final answer
    x = 37,798.60

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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.