Home / 53,920.89-80,892.27-20,642.04

Finding the Fourth Proportional to 53,920.89, 80,892.27 and 20,642.04

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Solution

The fourth proportional to 53,920.89, 80,892.27 and 20,642.04 is: 30,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920.89 : 80,892.27 = 20,642.04 : x
  2. Step 2: Convert to fraction form
    53,920.89/80,892.27 = 20,642.04/x
  3. Step 3: Cross multiply
    53,920.89x = 80,892.27 × 20,642.04
  4. Step 4: Simplify right side
    53,920.89x = 1,669,781,473.03
  5. Step 5: Solve for x
    x = 1,669,781,473.03/53,920.89
  6. Step 6: Final answer
    x = 30,967.25

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1.5x scale

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.