Home / 53,720.80-80,581.19-20,433.17

Finding the Fourth Proportional to 53,720.80, 80,581.19 and 20,433.17

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Solution

The fourth proportional to 53,720.80, 80,581.19 and 20,433.17 is: 30,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,720.80 : 80,581.19 = 20,433.17 : x
  2. Step 2: Convert to fraction form
    53,720.80/80,581.19 = 20,433.17/x
  3. Step 3: Cross multiply
    53,720.80x = 80,581.19 × 20,433.17
  4. Step 4: Simplify right side
    53,720.80x = 1,646,529,154.07
  5. Step 5: Solve for x
    x = 1,646,529,154.07/53,720.80
  6. Step 6: Final answer
    x = 30,649.75

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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.