Home / 55,885.64-83,778.36-20,801.36

Finding the Fourth Proportional to 55,885.64, 83,778.36 and 20,801.36

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Solution

The fourth proportional to 55,885.64, 83,778.36 and 20,801.36 is: 31,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,885.64 : 83,778.36 = 20,801.36 : x
  2. Step 2: Convert to fraction form
    55,885.64/83,778.36 = 20,801.36/x
  3. Step 3: Cross multiply
    55,885.64x = 83,778.36 × 20,801.36
  4. Step 4: Simplify right side
    55,885.64x = 1,742,703,826.57
  5. Step 5: Solve for x
    x = 1,742,703,826.57/55,885.64
  6. Step 6: Final answer
    x = 31,183.39

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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.