Home / 61,219.38-91,828.80-21,777.96

Finding the Fourth Proportional to 61,219.38, 91,828.80 and 21,777.96

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Solution

The fourth proportional to 61,219.38, 91,828.80 and 21,777.96 is: 32,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,219.38 : 91,828.80 = 21,777.96 : x
  2. Step 2: Convert to fraction form
    61,219.38/91,828.80 = 21,777.96/x
  3. Step 3: Cross multiply
    61,219.38x = 91,828.80 × 21,777.96
  4. Step 4: Simplify right side
    61,219.38x = 1,999,843,933.25
  5. Step 5: Solve for x
    x = 1,999,843,933.25/61,219.38
  6. Step 6: Final answer
    x = 32,666.84

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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.