Home / 53,941.30-80,912.72-20,663.06

Finding the Fourth Proportional to 53,941.30, 80,912.72 and 20,663.06

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Solution

The fourth proportional to 53,941.30, 80,912.72 and 20,663.06 is: 30,994.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,941.30 : 80,912.72 = 20,663.06 : x
  2. Step 2: Convert to fraction form
    53,941.30/80,912.72 = 20,663.06/x
  3. Step 3: Cross multiply
    53,941.30x = 80,912.72 × 20,663.06
  4. Step 4: Simplify right side
    53,941.30x = 1,671,904,035.22
  5. Step 5: Solve for x
    x = 1,671,904,035.22/53,941.30
  6. Step 6: Final answer
    x = 30,994.88

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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.