Home / 85,078.16-127,635.47-25,918.59

Finding the Fourth Proportional to 85,078.16, 127,635.47 and 25,918.59

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Solution

The fourth proportional to 85,078.16, 127,635.47 and 25,918.59 is: 38,883.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,078.16 : 127,635.47 = 25,918.59 : x
  2. Step 2: Convert to fraction form
    85,078.16/127,635.47 = 25,918.59/x
  3. Step 3: Cross multiply
    85,078.16x = 127,635.47 × 25,918.59
  4. Step 4: Simplify right side
    85,078.16x = 3,308,131,286.79
  5. Step 5: Solve for x
    x = 3,308,131,286.79/85,078.16
  6. Step 6: Final answer
    x = 38,883.44

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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.