Home / 84,848.40-127,272.60-54,910.80

Finding the Fourth Proportional to 84,848.40, 127,272.60 and 54,910.80

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Solution

The fourth proportional to 84,848.40, 127,272.60 and 54,910.80 is: 82,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,848.40 : 127,272.60 = 54,910.80 : x
  2. Step 2: Convert to fraction form
    84,848.40/127,272.60 = 54,910.80/x
  3. Step 3: Cross multiply
    84,848.40x = 127,272.60 × 54,910.80
  4. Step 4: Simplify right side
    84,848.40x = 6,988,640,284.08
  5. Step 5: Solve for x
    x = 6,988,640,284.08/84,848.40
  6. Step 6: Final answer
    x = 82,366.20

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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.