Home / 72,821.04-109,231.64-22,905.68

Finding the Fourth Proportional to 72,821.04, 109,231.64 and 22,905.68

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Solution

The fourth proportional to 72,821.04, 109,231.64 and 22,905.68 is: 34,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,821.04 : 109,231.64 = 22,905.68 : x
  2. Step 2: Convert to fraction form
    72,821.04/109,231.64 = 22,905.68/x
  3. Step 3: Cross multiply
    72,821.04x = 109,231.64 × 22,905.68
  4. Step 4: Simplify right side
    72,821.04x = 2,502,024,991.72
  5. Step 5: Solve for x
    x = 2,502,024,991.72/72,821.04
  6. Step 6: Final answer
    x = 34,358.55

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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.