Home / 84,721.06-127,044.67-28,550.70

Finding the Fourth Proportional to 84,721.06, 127,044.67 and 28,550.70

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Solution

The fourth proportional to 84,721.06, 127,044.67 and 28,550.70 is: 42,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,721.06 : 127,044.67 = 28,550.70 : x
  2. Step 2: Convert to fraction form
    84,721.06/127,044.67 = 28,550.70/x
  3. Step 3: Cross multiply
    84,721.06x = 127,044.67 × 28,550.70
  4. Step 4: Simplify right side
    84,721.06x = 3,627,214,259.77
  5. Step 5: Solve for x
    x = 3,627,214,259.77/84,721.06
  6. Step 6: Final answer
    x = 42,813.61

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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.