Home / 53,043.80-79,601.48-21,878.36

Finding the Fourth Proportional to 53,043.80, 79,601.48 and 21,878.36

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Solution

The fourth proportional to 53,043.80, 79,601.48 and 21,878.36 is: 32,832.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,043.80 : 79,601.48 = 21,878.36 : x
  2. Step 2: Convert to fraction form
    53,043.80/79,601.48 = 21,878.36/x
  3. Step 3: Cross multiply
    53,043.80x = 79,601.48 × 21,878.36
  4. Step 4: Simplify right side
    53,043.80x = 1,741,549,835.97
  5. Step 5: Solve for x
    x = 1,741,549,835.97/53,043.80
  6. Step 6: Final answer
    x = 32,832.30

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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.