Home / 74,245.23-111,358.80-21,654.77

Finding the Fourth Proportional to 74,245.23, 111,358.80 and 21,654.77

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Solution

The fourth proportional to 74,245.23, 111,358.80 and 21,654.77 is: 32,479.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,245.23 : 111,358.80 = 21,654.77 : x
  2. Step 2: Convert to fraction form
    74,245.23/111,358.80 = 21,654.77/x
  3. Step 3: Cross multiply
    74,245.23x = 111,358.80 × 21,654.77
  4. Step 4: Simplify right side
    74,245.23x = 2,411,448,644.68
  5. Step 5: Solve for x
    x = 2,411,448,644.68/74,245.23
  6. Step 6: Final answer
    x = 32,479.51

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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.