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Finding the Fourth Proportional to 55,372.92, 83,062.26 and 13,820.28

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Solution

The fourth proportional to 55,372.92, 83,062.26 and 13,820.28 is: 20,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,372.92 : 83,062.26 = 13,820.28 : x
  2. Step 2: Convert to fraction form
    55,372.92/83,062.26 = 13,820.28/x
  3. Step 3: Cross multiply
    55,372.92x = 83,062.26 × 13,820.28
  4. Step 4: Simplify right side
    55,372.92x = 1,147,943,690.63
  5. Step 5: Solve for x
    x = 1,147,943,690.63/55,372.92
  6. Step 6: Final answer
    x = 20,731.14

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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.