Home / 53,723.03-80,619.54-20,443.39

Finding the Fourth Proportional to 53,723.03, 80,619.54 and 20,443.39

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Solution

The fourth proportional to 53,723.03, 80,619.54 and 20,443.39 is: 30,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,723.03 : 80,619.54 = 20,443.39 : x
  2. Step 2: Convert to fraction form
    53,723.03/80,619.54 = 20,443.39/x
  3. Step 3: Cross multiply
    53,723.03x = 80,619.54 × 20,443.39
  4. Step 4: Simplify right side
    53,723.03x = 1,648,136,697.84
  5. Step 5: Solve for x
    x = 1,648,136,697.84/53,723.03
  6. Step 6: Final answer
    x = 30,678.40

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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.