Home / 53,589.54-80,365.83-21,990.63

Finding the Fourth Proportional to 53,589.54, 80,365.83 and 21,990.63

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Solution

The fourth proportional to 53,589.54, 80,365.83 and 21,990.63 is: 32,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,589.54 : 80,365.83 = 21,990.63 : x
  2. Step 2: Convert to fraction form
    53,589.54/80,365.83 = 21,990.63/x
  3. Step 3: Cross multiply
    53,589.54x = 80,365.83 × 21,990.63
  4. Step 4: Simplify right side
    53,589.54x = 1,767,295,232.17
  5. Step 5: Solve for x
    x = 1,767,295,232.17/53,589.54
  6. Step 6: Final answer
    x = 32,978.36

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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.