Home / 55,660.96-83,491.38-13,540.78

Finding the Fourth Proportional to 55,660.96, 83,491.38 and 13,540.78

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Solution

The fourth proportional to 55,660.96, 83,491.38 and 13,540.78 is: 20,311.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,660.96 : 83,491.38 = 13,540.78 : x
  2. Step 2: Convert to fraction form
    55,660.96/83,491.38 = 13,540.78/x
  3. Step 3: Cross multiply
    55,660.96x = 83,491.38 × 13,540.78
  4. Step 4: Simplify right side
    55,660.96x = 1,130,538,408.48
  5. Step 5: Solve for x
    x = 1,130,538,408.48/55,660.96
  6. Step 6: Final answer
    x = 20,311.16

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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.