Home / 84,845.14-127,268.06-28,685.55

Finding the Fourth Proportional to 84,845.14, 127,268.06 and 28,685.55

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Solution

The fourth proportional to 84,845.14, 127,268.06 and 28,685.55 is: 43,028.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,845.14 : 127,268.06 = 28,685.55 : x
  2. Step 2: Convert to fraction form
    84,845.14/127,268.06 = 28,685.55/x
  3. Step 3: Cross multiply
    84,845.14x = 127,268.06 × 28,685.55
  4. Step 4: Simplify right side
    84,845.14x = 3,650,754,298.53
  5. Step 5: Solve for x
    x = 3,650,754,298.53/84,845.14
  6. Step 6: Final answer
    x = 43,028.44

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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.