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Finding the Fourth Proportional to 61,896, 85,427.28 and 36,744.96

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Solution

The fourth proportional to 61,896, 85,427.28 and 36,744.96 is: 50,714.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,896 : 85,427.28 = 36,744.96 : x
  2. Step 2: Convert to fraction form
    61,896/85,427.28 = 36,744.96/x
  3. Step 3: Cross multiply
    61,896x = 85,427.28 × 36,744.96
  4. Step 4: Simplify right side
    61,896x = 3,139,021,986.51
  5. Step 5: Solve for x
    x = 3,139,021,986.51/61,896
  6. Step 6: Final answer
    x = 50,714.46

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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.