Home / 84,845.73-127,268.90-28,686.31

Finding the Fourth Proportional to 84,845.73, 127,268.90 and 28,686.31

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Solution

The fourth proportional to 84,845.73, 127,268.90 and 28,686.31 is: 43,029.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,845.73 : 127,268.90 = 28,686.31 : x
  2. Step 2: Convert to fraction form
    84,845.73/127,268.90 = 28,686.31/x
  3. Step 3: Cross multiply
    84,845.73x = 127,268.90 × 28,686.31
  4. Step 4: Simplify right side
    84,845.73x = 3,650,875,118.76
  5. Step 5: Solve for x
    x = 3,650,875,118.76/84,845.73
  6. Step 6: Final answer
    x = 43,029.57

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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.