Home / 53,579.25-80,385.54-21,991.89

Finding the Fourth Proportional to 53,579.25, 80,385.54 and 21,991.89

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Solution

The fourth proportional to 53,579.25, 80,385.54 and 21,991.89 is: 32,994.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,579.25 : 80,385.54 = 21,991.89 : x
  2. Step 2: Convert to fraction form
    53,579.25/80,385.54 = 21,991.89/x
  3. Step 3: Cross multiply
    53,579.25x = 80,385.54 × 21,991.89
  4. Step 4: Simplify right side
    53,579.25x = 1,767,829,953.27
  5. Step 5: Solve for x
    x = 1,767,829,953.27/53,579.25
  6. Step 6: Final answer
    x = 32,994.68

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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.