Home / 84,979.94-127,474.56-28,051.52

Finding the Fourth Proportional to 84,979.94, 127,474.56 and 28,051.52

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Solution

The fourth proportional to 84,979.94, 127,474.56 and 28,051.52 is: 42,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,979.94 : 127,474.56 = 28,051.52 : x
  2. Step 2: Convert to fraction form
    84,979.94/127,474.56 = 28,051.52/x
  3. Step 3: Cross multiply
    84,979.94x = 127,474.56 × 28,051.52
  4. Step 4: Simplify right side
    84,979.94x = 3,575,854,531.96
  5. Step 5: Solve for x
    x = 3,575,854,531.96/84,979.94
  6. Step 6: Final answer
    x = 42,078.81

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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.