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Finding the Fourth Proportional to 86,370, 119,220.43 and 50,571.52

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Solution

The fourth proportional to 86,370, 119,220.43 and 50,571.52 is: 69,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,370 : 119,220.43 = 50,571.52 : x
  2. Step 2: Convert to fraction form
    86,370/119,220.43 = 50,571.52/x
  3. Step 3: Cross multiply
    86,370x = 119,220.43 × 50,571.52
  4. Step 4: Simplify right side
    86,370x = 6,029,158,360.15
  5. Step 5: Solve for x
    x = 6,029,158,360.15/86,370
  6. Step 6: Final answer
    x = 69,806.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.