Home / 55,955.12-83,924.37-20,408.09

Finding the Fourth Proportional to 55,955.12, 83,924.37 and 20,408.09

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Solution

The fourth proportional to 55,955.12, 83,924.37 and 20,408.09 is: 30,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,955.12 : 83,924.37 = 20,408.09 : x
  2. Step 2: Convert to fraction form
    55,955.12/83,924.37 = 20,408.09/x
  3. Step 3: Cross multiply
    55,955.12x = 83,924.37 × 20,408.09
  4. Step 4: Simplify right side
    55,955.12x = 1,712,735,676.53
  5. Step 5: Solve for x
    x = 1,712,735,676.53/55,955.12
  6. Step 6: Final answer
    x = 30,609.10

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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.