Home / 84,800.20-127,116.60-47,378.20

Finding the Fourth Proportional to 84,800.20, 127,116.60 and 47,378.20

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Solution

The fourth proportional to 84,800.20, 127,116.60 and 47,378.20 is: 71,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,800.20 : 127,116.60 = 47,378.20 : x
  2. Step 2: Convert to fraction form
    84,800.20/127,116.60 = 47,378.20/x
  3. Step 3: Cross multiply
    84,800.20x = 127,116.60 × 47,378.20
  4. Step 4: Simplify right side
    84,800.20x = 6,022,555,698.12
  5. Step 5: Solve for x
    x = 6,022,555,698.12/84,800.20
  6. Step 6: Final answer
    x = 71,020.54

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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.