Home / 85,270.61-127,884.09-25,285.05

Finding the Fourth Proportional to 85,270.61, 127,884.09 and 25,285.05

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Solution

The fourth proportional to 85,270.61, 127,884.09 and 25,285.05 is: 37,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,270.61 : 127,884.09 = 25,285.05 : x
  2. Step 2: Convert to fraction form
    85,270.61/127,884.09 = 25,285.05/x
  3. Step 3: Cross multiply
    85,270.61x = 127,884.09 × 25,285.05
  4. Step 4: Simplify right side
    85,270.61x = 3,233,555,609.85
  5. Step 5: Solve for x
    x = 3,233,555,609.85/85,270.61
  6. Step 6: Final answer
    x = 37,921.11

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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.