Home / 53,007.12-79,520.40-21,825.36

Finding the Fourth Proportional to 53,007.12, 79,520.40 and 21,825.36

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Solution

The fourth proportional to 53,007.12, 79,520.40 and 21,825.36 is: 32,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,007.12 : 79,520.40 = 21,825.36 : x
  2. Step 2: Convert to fraction form
    53,007.12/79,520.40 = 21,825.36/x
  3. Step 3: Cross multiply
    53,007.12x = 79,520.40 × 21,825.36
  4. Step 4: Simplify right side
    53,007.12x = 1,735,561,357.34
  5. Step 5: Solve for x
    x = 1,735,561,357.34/53,007.12
  6. Step 6: Final answer
    x = 32,742.04

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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.