Home / 53,572.42-80,342.79-20,267.78

Finding the Fourth Proportional to 53,572.42, 80,342.79 and 20,267.78

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Solution

The fourth proportional to 53,572.42, 80,342.79 and 20,267.78 is: 30,395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,572.42 : 80,342.79 = 20,267.78 : x
  2. Step 2: Convert to fraction form
    53,572.42/80,342.79 = 20,267.78/x
  3. Step 3: Cross multiply
    53,572.42x = 80,342.79 × 20,267.78
  4. Step 4: Simplify right side
    53,572.42x = 1,628,369,992.31
  5. Step 5: Solve for x
    x = 1,628,369,992.31/53,572.42
  6. Step 6: Final answer
    x = 30,395.68

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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.