Home / 53,575.11-80,398.98-21,990.87

Finding the Fourth Proportional to 53,575.11, 80,398.98 and 21,990.87

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Solution

The fourth proportional to 53,575.11, 80,398.98 and 21,990.87 is: 33,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,575.11 : 80,398.98 = 21,990.87 : x
  2. Step 2: Convert to fraction form
    53,575.11/80,398.98 = 21,990.87/x
  3. Step 3: Cross multiply
    53,575.11x = 80,398.98 × 21,990.87
  4. Step 4: Simplify right side
    53,575.11x = 1,768,043,517.31
  5. Step 5: Solve for x
    x = 1,768,043,517.31/53,575.11
  6. Step 6: Final answer
    x = 33,001.21

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1.5x scale

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.