Home / 84,923.10-127,380.60-28,757.70

Finding the Fourth Proportional to 84,923.10, 127,380.60 and 28,757.70

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Solution

The fourth proportional to 84,923.10, 127,380.60 and 28,757.70 is: 43,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,923.10 : 127,380.60 = 28,757.70 : x
  2. Step 2: Convert to fraction form
    84,923.10/127,380.60 = 28,757.70/x
  3. Step 3: Cross multiply
    84,923.10x = 127,380.60 × 28,757.70
  4. Step 4: Simplify right side
    84,923.10x = 3,663,173,080.62
  5. Step 5: Solve for x
    x = 3,663,173,080.62/84,923.10
  6. Step 6: Final answer
    x = 43,135.18

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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.