Home / 84,805.18-127,209.78-25,640.62

Finding the Fourth Proportional to 84,805.18, 127,209.78 and 25,640.62

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Solution

The fourth proportional to 84,805.18, 127,209.78 and 25,640.62 is: 38,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,805.18 : 127,209.78 = 25,640.62 : x
  2. Step 2: Convert to fraction form
    84,805.18/127,209.78 = 25,640.62/x
  3. Step 3: Cross multiply
    84,805.18x = 127,209.78 × 25,640.62
  4. Step 4: Simplify right side
    84,805.18x = 3,261,737,629.26
  5. Step 5: Solve for x
    x = 3,261,737,629.26/84,805.18
  6. Step 6: Final answer
    x = 38,461.54

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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.