Home / 55,205.48-82,808.32-20,136.98

Finding the Fourth Proportional to 55,205.48, 82,808.32 and 20,136.98

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Solution

The fourth proportional to 55,205.48, 82,808.32 and 20,136.98 is: 30,205.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,205.48 : 82,808.32 = 20,136.98 : x
  2. Step 2: Convert to fraction form
    55,205.48/82,808.32 = 20,136.98/x
  3. Step 3: Cross multiply
    55,205.48x = 82,808.32 × 20,136.98
  4. Step 4: Simplify right side
    55,205.48x = 1,667,509,483.67
  5. Step 5: Solve for x
    x = 1,667,509,483.67/55,205.48
  6. Step 6: Final answer
    x = 30,205.51

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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.