Home / 84,930.31-127,395.60-28,770.85

Finding the Fourth Proportional to 84,930.31, 127,395.60 and 28,770.85

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Solution

The fourth proportional to 84,930.31, 127,395.60 and 28,770.85 is: 43,156.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,930.31 : 127,395.60 = 28,770.85 : x
  2. Step 2: Convert to fraction form
    84,930.31/127,395.60 = 28,770.85/x
  3. Step 3: Cross multiply
    84,930.31x = 127,395.60 × 28,770.85
  4. Step 4: Simplify right side
    84,930.31x = 3,665,279,698.26
  5. Step 5: Solve for x
    x = 3,665,279,698.26/84,930.31
  6. Step 6: Final answer
    x = 43,156.32

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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.