Home / 84,724.16-126,997.56-28,544.86

Finding the Fourth Proportional to 84,724.16, 126,997.56 and 28,544.86

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Solution

The fourth proportional to 84,724.16, 126,997.56 and 28,544.86 is: 42,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,724.16 : 126,997.56 = 28,544.86 : x
  2. Step 2: Convert to fraction form
    84,724.16/126,997.56 = 28,544.86/x
  3. Step 3: Cross multiply
    84,724.16x = 126,997.56 × 28,544.86
  4. Step 4: Simplify right side
    84,724.16x = 3,625,127,570.54
  5. Step 5: Solve for x
    x = 3,625,127,570.54/84,724.16
  6. Step 6: Final answer
    x = 42,787.41

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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.