Home / 47,889.56-66,083.36-27,740

Finding the Fourth Proportional to 47,889.56, 66,083.36 and 27,740

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Solution

The fourth proportional to 47,889.56, 66,083.36 and 27,740 is: 38,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,889.56 : 66,083.36 = 27,740 : x
  2. Step 2: Convert to fraction form
    47,889.56/66,083.36 = 27,740/x
  3. Step 3: Cross multiply
    47,889.56x = 66,083.36 × 27,740
  4. Step 4: Simplify right side
    47,889.56x = 1,833,152,406.40
  5. Step 5: Solve for x
    x = 1,833,152,406.40/47,889.56
  6. Step 6: Final answer
    x = 38,278.75

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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.