Home / 55,745.57-83,590.63-20,205.45

Finding the Fourth Proportional to 55,745.57, 83,590.63 and 20,205.45

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Solution

The fourth proportional to 55,745.57, 83,590.63 and 20,205.45 is: 30,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,745.57 : 83,590.63 = 20,205.45 : x
  2. Step 2: Convert to fraction form
    55,745.57/83,590.63 = 20,205.45/x
  3. Step 3: Cross multiply
    55,745.57x = 83,590.63 × 20,205.45
  4. Step 4: Simplify right side
    55,745.57x = 1,688,986,358.08
  5. Step 5: Solve for x
    x = 1,688,986,358.08/55,745.57
  6. Step 6: Final answer
    x = 30,298.13

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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.