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Finding the Fourth Proportional to 86,958.51, 119,999.32 and 49,232.76

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Solution

The fourth proportional to 86,958.51, 119,999.32 and 49,232.76 is: 67,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,958.51 : 119,999.32 = 49,232.76 : x
  2. Step 2: Convert to fraction form
    86,958.51/119,999.32 = 49,232.76/x
  3. Step 3: Cross multiply
    86,958.51x = 119,999.32 × 49,232.76
  4. Step 4: Simplify right side
    86,958.51x = 5,907,897,721.72
  5. Step 5: Solve for x
    x = 5,907,897,721.72/86,958.51
  6. Step 6: Final answer
    x = 67,939.27

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1.5x scale

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.