Home / 53,619.68-80,417.28-20,343.44

Finding the Fourth Proportional to 53,619.68, 80,417.28 and 20,343.44

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Solution

The fourth proportional to 53,619.68, 80,417.28 and 20,343.44 is: 30,510.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,619.68 : 80,417.28 = 20,343.44 : x
  2. Step 2: Convert to fraction form
    53,619.68/80,417.28 = 20,343.44/x
  3. Step 3: Cross multiply
    53,619.68x = 80,417.28 × 20,343.44
  4. Step 4: Simplify right side
    53,619.68x = 1,635,964,110.64
  5. Step 5: Solve for x
    x = 1,635,964,110.64/53,619.68
  6. Step 6: Final answer
    x = 30,510.52

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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.